On October 28, Facebook CEO Mark Zuckerberg, twitter CEO Jack Dorsey, Google and Youtube’s parent company alphabet CEO sandar Pichai participated in an online hearing of the Senate Commerce Committee. < / P > < p > since the 2016 US presidential election, social networking sites have spent years reformulating their platform policies and starting to play a more active role in regulating online speech. At the hearing, senators from both democratic and Republican parties were deeply dissatisfied with the power of social media platforms, but they also had profound differences on how to solve the problem. People believe that platforms should censor sites and services more actively, while Republicans believe that platforms should intervene less in most political discourse. This mixed signal adds new complexity to the already controversial work of technology companies. At the hearing, twitter CEO Jack Dorsey faced the most acute problems, including Twitter’s recent decision to block links to articles in the New York Post attacking presidential candidate Joe Biden, who later canceled his campaign. Currently, although the New York Post’s Twitter account is still blocked, twitter will allow discussion posts about controversial articles to appear, according to the Wall Street Journal. Dorsey said twitter had previously told the New York Post that the account would be reactivated as long as those tweets were deleted like other users. After the account is activated, the new york post can continue to report Biden’s articles without penalty. < p > < p > Twitter has been controversial for putting warning labels on US President Trump’s tweets. In response, novel coronavirus pneumonia has been formulated by the government, including the “manipulation of media, public health, especially new crown pneumonia and civic integrity”, Trump said. Senator Amy Klobuchar challenged Zuckerberg, saying research showed that Facebook’s algorithm contributed to political polarization. Senator Richard Blumenthal asked if the three social network companies had taken enough measures to prepare for the false information that might appear in the turbulent post election period. In response, executives said they had changed the way they handled election related content and worked with news publishers. Zuckerberg said most of the content on Facebook was positive, such as family activities. < / P > < p > according to section 230 of the communication regulations act of 1996, Internet companies are exempted from liability for the content on the platform. But in May 2020, U.S. President trump formally signed an executive order requiring the federal government to limit the exemption clause of social media. In June, the US Department of Justice issued an opinion calling on the US Congress to amend this provision. According to the opinion, the current situation in the Internet service industry is completely different from that in 1996, and the time is ripe to amend the exemption clauses of Internet companies. According to the Washington Post on the same day, more and more U.S. congressmen think these rules are out of date. Mark Zuckerberg, Facebook’s chief executive, said at the hearing that day that he thought it was necessary to “update the law.”. [image] Google secretly tests 6GHz networks in 17 states of the United States