Facebook security chief warns of dangers to fake-news solutions

Facebook's chief security officer warned that the fake-news problem is more complicated and dangerous to solve than the public thinks.

Alex Stamos, who is handling the company's investigation into Russia's use of the social media platform during the 2016 U.S. presidential campaign, cautioned about hoping for technical solutions that he said could have unintended consequences of ideological bias.

It's very difficult to spot and propaganda using just computer programs, Stamos said in a series of Twitter posts Saturday.

"Nobody of substance at the big companies thinks of algorithms as neutral," Stamos wrote, adding that the media is simplifying the matter. "Nobody is not aware of the risks."

The easy would boil down to silencing topics that Facebook is aware are being spread by bots ––which should only be done "if you don't worry about becoming the Ministry of Truth" with machine learning systems "trained on your personal biases," he said.

Stamos's comments shed light on why Facebook added 1,000 people to review its advertising, rather than attempt an automated solution.

The company sent a note to advertisers telling them it would start to manually review ads targeted to people based on politics, religion, ethnicity or social issues. The company is trying to figure out how to monitor use of its system without censoring ideas, after the Russian government used fake accounts to spread political discord in the U.S. before the election.

"A lot of people aren't thinking hard about the world they are asking (the tech industry) to build," Stamos wrote. "When the gods wish to punish us they answer our prayers."

Facebook has given more than 3,000 ads purchased by Russian entities to congressional investigators looking into Russian influence on the election. Twitter has said it gave the panels a roundup of advertisements by RT, formerly known as Russia Today, a TV network funded by the Russian government.

Officials of Facebook, Twitter and Google are set to testify to Congress Nov. 1.

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