Scientists Get Closer to Building Artificial Life

Despite ethical and safety concerns, researchers are getting closer to building life from scratch. In fact, scientists are hoping to synthesize a human genome in the next 10 years. Investors are putting huge amounts of money into research that may deliver novel drugs, materials and chemicals. Some of the projects were highlighted at a synthetic biology conference in London April 4-6. VOA’s Deborah Block has a report.

US Drops Effort to Force Twitter to Reveal Anti-Trump Account

The U.S. government on Friday dropped its effort to force Twitter to identify users behind an account critical of President Donald Trump, the social media company said.

In response, Twitter said it was dropping a federal lawsuit against the U.S. government that challenged the request to unmask the users.

Twitter had sued just a day earlier, claiming the government overstepped its authority in issuing a summons to reveal the account owners.

The lawsuit said that the Department of Homeland Security and U.S. Customs and Border Protection had sought the identity of the users of Twitter handle @ALT-USCIS.

‘Alternative’ handles

The account describes itself as “immigration resistance.” Its creators told media outlets the account is run by current and former employees of U.S. Citizenship and Immigration Services (USCIS), which is overseen by the Department of Homeland Security.

It is one of several “alternative” handles purportedly created by current federal employees unhappy with the Trump administration.

It was not immediately clear why the government withdrew its effort to identify the Twitter users. It was also not immediately known whether the government had closed an investigation it said it was conducting into the Twitter account.

The American Civil Liberties Union praised the government’s decision to withdraw its request, saying in a tweet, “Big victory for free speech and the right to dissent.”

Twitter Refuses US Order to Reveal User Behind Anti-Trump Account

Twitter on Thursday sued to block an order by the U.S. government demanding that it reveal who is behind an account opposed to President Donald Trump’s tough immigration policies.

Twitter cited freedom of speech as a basis for not turning over records about the account, @ALT_uscis. The account is claimed to be the work of at least one federal immigration employee, according to the lawsuit filed in San Francisco federal court.

The acronym USCIS refers to U.S. Citizenship and Immigration Services, and the account describes itself as “immigration resistance.” Trump has vowed to build a wall along the U.S. border with Mexico and has promised to deport millions of illegal immigrants.

Following Trump’s inauguration in January, anonymous Twitter feeds that borrowed the names and logos of more than a dozen U.S. government agencies appeared to challenge the president’s views on climate change and other issues. They called themselves “alt” accounts.

Twitter spokesman Nick Pacilio declined to comment on whether the government had demanded information about other accounts critical of Trump.

User privacy advocate

Twitter, which counts Trump among its active users, has a record of litigating in favor of user privacy.

“The rights of free speech afforded Twitter’s users and Twitter itself under the First Amendment of the U.S. Constitution include a right to disseminate such anonymous or pseudonymous political speech,” Twitter said in the lawsuit.

The Department of Homeland Security, which is a defendant in the lawsuit, declined to comment on pending litigation. The Justice Department, which typically represents federal agencies in court, and the White House had no immediate comment.

Senator Ron Wyden, an Oregon Democrat, said in a statement that it was a waste of resources to try to uncover an anonymous critic, and he called on the Homeland Security inspector general to investigate who directed the “witch hunt.”

Esha Bhandari, a staff attorney with the American Civil Liberties Union, which is representing the Twitter user, said the government’s request was highly unusual. Requests for social media account information from the U.S. government typically involve national security or criminal charges, she said.

“We have seen no reason the government has given for seeking to unmask this speaker’s identity,” Bhandari said, adding that the right to anonymous speech against the government is “a bedrock American value” strongly protected under the First Amendment of the U.S. Constitution.

Tweeter’s response

Shortly after the lawsuit became public, @ALT_uscis tweeted a copy of the First Amendment and a picture of part of the lawsuit. The account’s followers nearly tripled to 89,000 in the hours after the news broke.

For weeks the account has posted criticism of the administration. It tweeted a parody of the game bingo for “right-wing idiots,” said that some anti-immigration advocates must have been dropped on their heads at birth, and mocked Trump for not giving more of his wealth to charities.

Twitter said it received an administrative summons last month demanding that it provide records related to the account.

A copy of the summons filed with the lawsuit says the records are needed for an investigation to ensure compliance with duties, taxes and fines, and other customs and immigration matters.

It was not immediately clear how the anonymous account fit into those laws and regulations, and Twitter said the summons was an abuse of a law meant to be used to investigate imported merchandise.

Twitter might have a strong case that the summons was improper, said Paul Alan Levy, staff attorney at Public Citizen Litigation Group, who specializes in online privacy and free speech issues.

“I don’t think there is any way for the government to come out of this looking good,” Levy said.

There is no indication that the White House was aware of the summons, which was signed by a Florida-based supervisor who works in an office that investigates employee corruption, misconduct and mismanagement. The supervisor could not be reached for comment.

The summons requested, but apparently did not order, that Twitter keep the document private.

Past battles

The social media company has a history of challenging government demands for information on its users, including a 2012 demand from New York prosecutors about an Occupy Wall Street protester. In that case, Twitter was forced to hand over tweets from the protester to a judge who threatened the company with sanctions, and the protester pleaded guilty of disorderly conduct.

Twitter sued the U.S. Department of Justice in 2014, seeking permission to publicly disclose more information about requests it gets from U.S. authorities for information about its users.

The lawsuit was partly dismissed last year.

Among the lawyers representing Twitter in the latest case is Seth Waxman, a former high-ranking Justice Department official under President Bill Clinton.

Iranian Americans Use Tech to Count Their Impact in US

Pirooz Parvarandeh, a longtime Silicon Valley executive, saw a problem.

Although he has lived in the United States for more than 40 years, he knew little about the contributions and accomplishments of Iranian Americans like himself. That lack of knowledge is widespread, he feared, and in his view makes Iranians in America more subject to stereotypes, discrimination and attacks.

“What image comes up with ‘Iranian’? A terrorist? A hostage-taker? Or a contributing member of society?” he asked at a talk this week at the University of California, Berkeley. “If we don’t know the contributions of Iranian Americans, how can we expect the American public to know? If the public is not with us, why would policymakers want to stick up for us?”

Last year, Parvarandeh met with other Iranian Americans to come up with the Iranian Americans’ Contribution Project, a nonprofit that uses technology to gather and analyze data about Iranian Americans. Their efforts picked up steam after Iran was listed among countries included in the Trump administration’s travel ban.

“We want to build a shield,” Parvarandeh said. “We want to build a protective mechanism to say, ‘Here is what we’ve done.'”

Counting contributions

Parvarandeh’s quest is one that many immigrant groups have considered as they try to both assimilate in the U.S. and stand proud of their cultural identity. For Iranian Americans, the issue has been especially complicated by long-standing tensions between the U.S. and Iran. An estimated one million Iranians live in the U.S., mainly in California.

The project aims to stay out of the political fray and has no religious affiliation. It approaches the question of Iranian Americans’ contributions in a systematic way, something Parvarandeh considers “pioneering” among all of the U.S. diaspora groups. 

Working with software engineers, the project has come up with an algorithm that captures 200,000 unique Iranian last names and 70,000 unique first names. By applying that algorithm to public databases the organization buys or finds of professional organizations, scholarly articles and licensing bodies, the project creates a snapshot of Iranian Americans in a variety of professions.

So far, the project has found 490 Iranian American chiropractors, more than 9,000 physicians, more than 3,000 dentists and about 1,000 pharmacists. Iranians have been awarded at least 40,000 patents and they make up more than 2.5 percent of lawyers admitted to the State Bar of California. On its website, the project shows where Iranians in a variety of professions are on a U.S. map, sometimes county by county. It also offers a breakdown of professions of people found through LinkedIn. 

Since some Iranian names can be found in other countries, the algorithm also calculates the probability that a person is Iranian.

Building a brand

The approach has its limits. The second generation of Iranian Americans and people marrying non-Iranian Americans may begin to take more American-sounding names. But Parvarandeh says he is hoping that Iranian Americans will participate in the project and help make it more accurate. At the moment, the data is anonymized, meaning that it doesn’t list the names of people it captures. But the project combines the data with interviews with Iranian Americans about their life stories and accomplishments.

“There are many arrows being shot in our direction,” he said. “There’s anti-immigrant sentiment in the U.S. and Europe. What we’re trying to do is build a reputation, build a brand.”

Tech Firms Must Go Beyond Congo’s ‘Conflict Minerals’ to Clean Supply Chain: Study

Abuses linked to mining in countries such as Myanmar and Colombia are being overlooked by technology companies focused only on eliminating “conflict minerals” from war-torn parts of Africa in their supply chains, researchers said on Thursday.

In Democratic Republic of Congo (DRC), competition for mineral resources has fueled two decades of conflict in its eastern provinces, including a 1998-2003 war that killed millions, mostly from hunger and disease.

Congo’s supply of tantalum, tin, tungsten and gold – metals used in smartphones, batteries and laptops – has been under scrutiny since 2010, when U.S. laws required U.S.-listed firms to ensure supply chains were free from “conflict minerals”.

Yet the same minerals are being quarried in areas controlled by armed groups — sometimes using child labor — in countries such as Myanmar, Bolivia and Rwanda, according to research published by Verisk Maplecroft on Thursday.

The problem for tech companies was being able to trace the metals used in their products to the source mine or smelter, the risk consultancy group said in a report.

“The problem is because this is so far down the supply chain, it’s difficult for technology companies to know if those minerals they’re using are coming from irresponsibly managed operations,” said Stefan Sabo-Walsh of Verisk Maplecroft.

Sabo-Walsh told the Thomson Reuters Foundation that in the most extreme cases the minerals are excavated using forced labor in order to buy weapons and fund violence.

A convoluted process

After minerals are mined, they are sold to a middleman and usually taken to the country’s capital, where the raw metal is extracted and blended with other metals, the report said.

The blend is exported to a country such as China and then transformed for use in tech products.

The complicated process “further muddies supply chain transparency efforts” for companies that strive to only use safe and ethical extraction, Verisk Maplecroft said.

Tin, which is used in tablet computers and smartphones, was ranked as having the highest risk for labor rights violations at illegal mines.

Bolivia, Myanmar and Indonesia, some of the largest tin-producing countries, pose an “extreme risk” for child labor at tin mines, the research showed.

Some smaller mines are not run by armed groups but still hurt the environment and local communities and are difficult to police, Sabo-Walsh said.

At illegal mines, waste water runoff often makes its way into local water sources, polluting the supply, he said.

“Organizations need to be aware of the bigger picture when sourcing minerals from different countries – otherwise they risk a consumer backlash or regulatory penalties from the raft of emerging supply chain legislation,” he said in a statement.

Poll: 40 Percent of Americans More Cautious With Email After Election Hacking

Forty percent of Americans say they are more cautious about what they write in emails since last year’s cyber attacks against the Democratic Party, according to a Reuters/Ipsos poll released on Thursday.

The March 11-20 opinion survey showed that a sizable minority of Americans made personal changes to how they interact online following the hacking of emails during the 2016 U.S. presidential campaign, which were later published by WikiLeaks and other entities.

Among respondents, 45 percent said they had changed their online passwords since the hacks.

U.S. intelligence agencies believe Russia orchestrated the disclosure of the emails to embarrass the campaign of Democratic presidential nominee Hillary Clinton and help Republican Donald Trump win. The emails also led to the ouster of Democratic National Committee Chairwoman Debbie Wasserman Schultz. Moscow denies the allegations.

Concerns about online security crossed party lines, with 43 percent of Democrats and 40 percent of Republicans saying they had been more cautious about personal email since the election hacking.

“It makes you start to wonder how secure anything is as far as your own privacy,” said Delene Rutledge, 67, a retired teacher in Indiana who participated in the poll. “And yet I’m not the greatest at coming up with great passwords – I’m not sure it would make any difference.”

Despite concerns about digital privacy, only a small percentage of Americans said they had started protecting themselves online in other ways within the past month.

Five percent of adults said they had begun using secure messaging services like Signal, WhatsApp or Wickr.

Some 16 percent said they had placed tape over the camera in their computers to block any unwanted spying, a tactic advocated by Facebook Chief Executive Mark Zuckerberg and FBI Director James Comey.

Twenty-one percent said they had switched off the tracking capabilities of their internet browsers, while 17 percent changed their user ID on social media networks like Facebook or Twitter and 10 percent unplugged smart TVs or other internet-connected devices when not using them.

The Reuters/Ipsos poll was conducted online in English in all 50 states. It included 3,307 American adults and had a credibility interval, a measure of accuracy, of 2 percentage points.

Twitter Unveils ‘Lite’ Service for Emerging Markets

Twitter has unveiled a new, light mobile site aimed at emerging markets where people are still using slower 2G mobile connections.

Twitter Lite, according to the company, will use less data and will be up to 30 percent faster than the full Twitter website.

The service will be rolled out globally, but is primarily aimed at India, Africa and parts of Latin America.

“Twitter Lite provides the key features of Twitter, your timeline, Tweets, Direct Messages, trends, profiles, media uploads, notifications, and more,” Twitter said in a blog post.

Twitter Lite also offers a “data saver mode” that allows a user to see smaller previews of videos and images before they fully load. That could save up to 70 percent on data usage, the company said.

For Android users, Twitter Lite can still deliver push notifications as well as offline support “so you will not be interrupted while using Twitter if you temporarily lose your connection,” the company said.

According to the global mobile phone operators group, GSMA, there were 3.8 smartphone connections globally at the end of 2016.Of those, 45 percent use slower 2G networks.

Twitter is following a trend toward tech companies offering lite versions of their services. Facebook has a lite version for both the main Facebook app and its Messenger app. Microsoft offers a lite version of Skype for users in India.

Germany Threatens Social Media Companies with Massive ‘Hate Speech’ Fines

Germany has threatened to slap social media companies with huge fines if they do not act quickly enough to remove “hate speech” from their websites.

Chancellor Angela Merkel’s cabinet on Wednesday approved a measure that would fine websites like Facebook and Twitter up to $55 million if they do not do enough to censor comments that violate German speech law.

“Hate crimes that are not effectively combatted and prosecuted pose a great danger to the peaceful cohesion of a free, open and democratic society,” said Merkel’s government in a statement.

Germany outright bans any speech that overtly promotes racism or insults a certain segment of the population. It also, due to its Nazi past, bans public Holocaust denial.

The draft legislation would require social media companies to remove any illegal speech within 24 hours of it being flagged by users. Other offensive content would need to be removed within seven days of being reported and reviewed.

The German Federation of Journalists blasted the move and said the legislation would make it “difficult to reconcile freedom of the press and opinion.”

German Justice Minister Heiko Maas said the companies are responsible for policing and removing hateful content from their sites and that “there is no room for criminal incitement on social media.”

“The internet affects the culture of debate and the atmosphere in our society. Verbal radicalization is often a preliminary stage to physical violence,” he added.

The massive flow of refugees into Germany over the past two years has fueled a rise in negative online comments, alarming German authorities. In 2015, the social media companies agreed to step up policing of online hate speech, though Maas said they have not done enough.

Mass cited research that claims Twitter removes just one percent of the illegal content flagged by users within 24 hours, while Facebook removes 39 percent. Facebook rejected Mass’s data, citing its own data that shows it removes about 65 percent of illegal content within a day.

German lawmaker Renate Kuenast called the fines “an invitation to not just erase real insults, but to wipe out almost everything for the sake of playing it safe.”

The bill still needs to be approved by parliament.

Ebay’s Founder Pledges $100 Million to Fight Fake News, Hate Speech

Ebay founder Pierre Omidyar’s philanthropy promised $100 million over the next five years to support journalism and fight fake news, the foundation announced Wednesday.

The International Consortium of Investigative Journalists (ICIJ), which broke the story of the controversial Panama Papers, is the first organization to receive funds from the Omidyar Network – a three-year grant of up to $4.5 million “to expand its investigative reporting”.

“Across the world, we see a worrying resurgence of authoritarian politics that is undermining progress towards a more open and inclusive society,” Matt Bannick, Omidyar Network Managing Partner, said. “A lack of government responsiveness and a growing distrust in institutions, especially the media, are eroding trust. Increasingly, facts are being devalued, misinformation spread, accountability ignored, and channels that give citizens a voice withdrawn.”

Formally announcing the commitment at the Skoll World Forum on social entrepreneurship in Oxford, England, the Omidyar Network has also promised support to the Anti-Defamation League, devoted to fighting anti-Semitism, and the Latin American Alliance for Civic Technology (ALTEC).

Established in 2004 by Pierre Omidyar and his wife Pam, the Omidyar Network supports organizations to foster economic and social change.

Reporting on the Panama Papers revealed secret, so called offshore financial accounts that were hiding assets to avoid tax payments.

Kim Dotcom Announces New Bitcoin Venture for Content Uploaders to Earn Money

Controversial New Zealand-based internet mogul Kim Dotcom plans to launch a Bitcoin payments system for users to sell files and video streaming as he fights extradition to the United States for criminal copyright charges.

The German-born entrepreneur, who is wanted by U.S. law enforcement on copyright and money laundering allegations related to his now-defunct streaming site Megaupload, announced his new venture called ‘Bitcontent’ in a video posted on Youtube this week.

“You can create a payment for any content that you put on the internet…you can share that with your customers, with the interest community and, boom, you are basically in business and can sell your content,” Dotcom said in the video.

He added that Bitcontent would eventually allow businesses, such as news organizations, to earn money from their entire websites. He did not provide a launch date.

Dotcom did not provide details on how Bitcontent would differ from existing Bitcoin operations or how it would help news organizations make money beyond existing subscription payment options.

Bitcoin is a virtual currency that can be used to move money around the world quickly and with relative anonymity, without the need for a central authority, such as a bank or government.

The currency’s anonymity has however made it popular with drug dealers, money launderers and organized crime groups, meaning governments and the financial establishment have been slow to embrace it since the first trade in 2009. The currency’s value hit record levels in 2017, trading at $1,145 on Wednesday, a fivefold increase in a year, amid growing interest globally.

A New Zealand court ruled in February that Dotcom could be extradited to the United States to face charges relating to his Megaupload website, which was shutdown in 2012 following an FBI-ordered raid on his Auckland mansion, a decision he was appealing.

Dotcom, who has New Zealand residency, became well known for his lavish lifestyle as much as his computer skills.

He used to post photographs of himself with cars having vanity plates such as “GOD” and “GUILTY”, shooting an assault rifle and flying around the world in his private jet.

Mercedes, Bosch to Co-develop Self-driving Taxis

Mercedes-Benz owner Daimler and supplier Robert Bosch are teaming up to develop self-driving cars in an alliance aimed at accelerating the production of “robo-taxis.”

The pact between the world’s largest maker of premium cars and the world’s largest automotive supplier forms a powerful counterweight to new auto industry players like ride-hailing firms Uber and Didi, which are also working on self-driving cars.

Technology companies and carmakers are striving to adjust to a shifting landscape in the auto industry as consumers increasingly use smartphones to locate, hail and rent vehicles, rather than buying cars.

The alliance not only ends Daimler’s efforts to develop an autonomous car largely on its own, but moves the auto industry’s ambitions beyond simply developing prototype vehicles toward industrial-scale production of self-driving cars.

The two German companies announced the deal Tuesday. Terms weren’t disclosed.

Software, algorithms

Bosch — founded in 1886, the same year that Mercedes founder Carl Benz patented the motorcar — will develop software and algorithms needed for autonomous driving together with the carmaker.

Bosch said Mercedes would be able to use the jointly developed system for two years before it could be offered to competitors.

The deal will help the automotive supplier make up ground in a competitive autonomous driving system sector where rivals Continental, Delphi, ZF and others have also made heavy investments.

For Daimler and its Mercedes division, teaming up with Bosch helps them throw more engineering resources at autonomous cars, allowing them to speed up the process of creating a production-ready system for autonomous cars by several years.

The autonomous system will now be ready by the beginning of next decade, Daimler said, without disclosing when it had first envisaged the commercial launch of automated taxis.

“The prime objective of the project is to achieve the production-ready development of a driving system which will allow cars to drive fully autonomously in the city,” Daimler said in a statement Tuesday.

The company will continue to build and sell vehicles that can be manually operated by individual drivers.

The market for advanced driver assistance systems and autonomous vehicles is expected to grow from about $3 billion in 2015 to $96 billion in 2025 and $290 billion in 2035, Goldman Sachs said last year.

Daimler is focusing its efforts on the app-based car-sharing and ride-hailing sector dominated by China’s Didi and U.S.-based Uber and Lyft.

Global growth

Like autonomous cars, this market is a big global growth area and is expected to expand by 28 percent a year to 2030, according to consultancy McKinsey.

“Within a specified area of town, customers will be able to order an automated shared car via their smartphone. The vehicle will then make its way autonomously to the user,” Daimler said. “The idea behind it is that the vehicle should come to the driver rather than the other way round.”

The cutthroat competition to launch self-driven cars has forced carmakers to shift strategy from an evolutionary toward a revolutionary approach.

Instead of evolving driver assistance systems to achieve full autonomy, carmakers are now experimenting with radical car designs combined with software-driven development — which has led to alliances with technology companies.

Mercedes-Benz’s archrival BMW teamed up with Israeli autonomous vehicle tech company Mobileye and chip maker Intel last year to develop new technology that could put autonomous cars on the road by 2021.

Intel has since agreed to buy Mobileye for $15.3 billion, a deal that followed Qualcomm’s $47 billion move to acquire Dutch automotive chip supplier NXP.

Before deciding to partner with Bosch, Mercedes-Benz had two engineering teams, totaling about 500 people, working on autonomous vehicles. One took an evolutionary approach, upgrading the capabilities of conventional vehicles, while the other team took a more radical approach to the car’s design.

Bosch and Mercedes did not disclose how many additional engineers they would assign to the teams in Stuttgart and Silicon Valley.

“Cars which do not rely on any driver input have a different architecture and sensor setup, with more radar and cameras,” Christoph von Hugo, a senior Mercedes-Benz safety manager, told Reuters at a recent event to present safety systems.

Different levels of autonomy

The current Mercedes E-Class can cruise without driver input on highways, maintaining the distance to the car in front and staying in lane using a system that has “level 2” autonomy.

Full autonomy — known as an “eyes off, brains off” or “level 5” system — does away with even the need for a steering wheel.

“We don’t want to wait until level 3 has arrived before we start with level 4/5. That will be too late,” von Hugo said, adding the prospect of new revenue streams from maintaining fleets of robo-taxis was a big motivating factor for doubling the carmaker’s R&D efforts.

Autonomous vehicles came closer to road-going reality after Google unveiled a prototype car that it had developed with the help of Bosch in 2012. Mercedes-Benz responded by developing an S-class limousine that drove 103 kilometers (64 miles) between the German towns of Mannheim and Pforzheim a year later.

Real commercial applications for autonomous cars will start to take off between 2020 and 2025, Ola Kaellenius, Daimler board member and head of group research and Mercedes-Benz car development, told Reuters last month.

“If you take the robo-taxi, you start perhaps in a city or several cities or areas of cities, and then you grow from there,” he said. “The key is to get to something that you can commercialize, scale up.”

Bosch is already one of the world’s largest suppliers of advanced driver assistance systems (ADAS) and recently announced an alliance with U.S. tech firm Nvidia to develop a self-driving computer for production cars. Mercedes-Benz and auto supplier ZF also have separate alliances with Nvidia.

The Bosch-Daimler alliance will rely on high-definition mapping systems provided by HERE, the digital mapping firm owned by BMW, Mercedes, Audi and Intel.

Experts Urge Huge Expansion of Online Therapy For Mental Illness

A “massive and growing” mental health burden across the world can only be tackled successfully with a major expansion of online psychiatric resources such as virtual clinics and web-based psychotherapies, specialists said on Tuesday.

With resources tight and the global mental health system only serving around 10 percent of patients even now, specialists speaking at the European Congress on Psychiatry (ECP) said the web is the only option for significant extra treatment capacity.

The World Health Organization (WHO) said last week mental disorders – in particular depression – are now the leading cause of ill health and disability worldwide.

Rates of depression have risen by more than 18 percent since 2005, the WHO says, and a lack of support for mental health combined with a common fear of stigma means many do not get the treatment they need.

Michael Krausz, a professor of psychiatry at the University of British Columbia in Canada, and a leading specialist at the World Psychiatric Association, said “E-mental health” should be a major part of the answer.

“Through a proactive approach we can create an additional virtual system of care which could build capacity, improve the quality of care and make mental health care more effective,” he told the ECP.

Web-based psychological treatments such as online cognitive behavior therapy (CBT) have proven effective in several conditions including depression and anxiety. Krausz said there is also potential for online CBT to be modified for conditions such as post-traumatic stress disorder (PTSD).

“Online assessments, web-based psychotherapies,… and online research strategies will significantly change the field,” he told the congress.

Technologies like virtual reality and artificial intelligence can also be used in certain therapies for anxiety, and various online games and apps are being developed to support treatment of depression in children.

In another example, scientists at King’s College London have developed an avatar-based system to help treat people with schizophrenia who hear distressing voices.