Adam Mosseri, the head of the photo sharing app, will testify before Congress for the first time.
Mr. Mosseri is expected to appear before a Senate panel in the week of December 6 as part of a series of hearings on protecting children online.
Mr. Mosseri will be appearing at a hearing this year with Antigone Davis, the global head of safety for Meta, the parent company of Facebook, and with a former employee turned whistle-blower. Politicians and regulators are scrutinizing Ms. Haugen's revelations about the social networking company, particularly those about Facebook and the research it did into the effects on some teenagers and young girls.
In September, Ms. Davis told Congress that the company disputed the premise that it was harmful for teenagers. Mr. Blumenthal wrote a letter to Mark Zuckerberg, the chief executive of Meta, suggesting that his company had provided false or inaccurate testimony to him.
Mr. Blumenthal asked if Mr. Mosseri or Mr. Facebook would testify in front of the Senate's Commerce Committee to set the record straight.
Mr. Blumenthal said that the whole nation is asking about why the top guy at the top photo sharing website, likeInstagram, has created so much danger and damage by driving toxic content to children with these immensely powerful algorithms. The hearing will help us develop laws that can make platforms safer.
The committee is looking for a date for Adam to testify on the important steps that are being taken by the company.
Mr. Blumenthal said he would ask Mr. Mosseri about how children are sent into dangerous rabbit holes. Lawmakers have heard from hundreds of parents and children who have shared personal anecdotes, including stories of how posts on fitness devolved into recommendations for content related to extreme dieting, eating disorders and self- harm.
Mr. Blumenthal said he would seek a commitment from Mr. Mosseri to make the ranking and recommendation decisions transparent to the public. Mr. Blumenthal said that executives at the three companies who testified in the previous hearing have committed to transparency.
This will be the first time that Mr. Mosseri will testify to the lawmakers. Mr. Mosseri has become the public face of the photo-sharing app, hosting regular video announcements about new features and appearing on morning television shows.
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A tech company is in trouble. The leak of internal documents by a former Facebook employee has given an intimate look at the operations of the secretive social media company and renewed calls for better regulations of the company's wide reach into the lives of its users.
The person who blew the whistle. During an interview with "60 Minutes" that aired in October, a former product manager at Facebook said that she was responsible for leaking internal documents.
Ms. Haugen testified in Congress. Ms. Haugen testified before a Senate subcommittee that she believed that Facebook was willing to use harmful content to keep users coming back. Facebook executives called her accusations false.
The Facebook papers were published. Ms. Haugen gave the documents to Congress in redacted form. The New York Times was one of the news organizations that received the documents.
Mr. Mosseri appeared on NBC's Today Show in September to announce that a version of the app for children would be paused. The company was working on a version of the photo sharing app for children.
The leaked files of Ms. Haugen were first reported by The Wall Street Journal. The documents called The Facebook Papers formed the basis for multiple complaints to the Securities and Exchange Commission that Meta misled investors about its efforts to protect users.
A bipartisan group of 11 state attorneys general announced last week that they had opened an investigation into whether Meta had failed to protect the mental well-being of young people on its platforms.
