children, and it s not just that they make money. again, it s that they valued their profit more than the pain that they cause to children and their families. reporter: the word addiction coming up over and over again during the testimony. it s just like cigarettes. teenagers don t have good se self-regulation. she say explicitly, i feel bad when i use instagram, and yet i can t stop. we need to protect the kids. reporter: in a tweet, facebook responding, saying haugen didn t actually work on these issues directly. she was a product manager tackling misinformation and had no direct reports and never attended a decision point meeting. but haugen brought receipts, research from inside facebook, documenting the damage being done. there are organizational problems. reporter: and during all this, where was mark zuckerberg? senators called out his absence. and quipped that he was sailing, referring to his recent uploads
blumenthal calling the revelations jaw-dropping. and comparing facebook too big tobacco. it is documented proof that facebook knows its products can be addictive and toxic to children, and it s not just that they make money. again, it s that they value their profit more than the pain that they cause to children and their families. reporter: the word addiction coming up over and over again during the testimony. just like cigarettes. teenagers don t have good self-regulation. they say explicitly, i feel bad when i use instagram, and yet i can t stop. we need to protect the kids. reporter: in a tweet facebook responding saying haugen didn t actually work on these issues directly. she was a product manager tackling misinformation and had no direct reports and never attended a decision point meeting. but haugen brought receipts, research from inside facebook documenting the damage being
reporter: in a tweet, facebook responding saying haugen didn t actually work on these issues, directly. she was a product manager tackling misinformation, and had no direct reports and never attended a decision point meeting. but haugen brought receipts. research from inside facebook. documenting the damage being done. there are organizational problems. reporter: and during all this, where was mark zuckerberg? senators called out his absence. and referring to his recent uploads to facebook and instagram. rather than taking responsibility and showing leadership, mr. zuckerberg is going sailing. reporter: no new comment from zuckerberg today. meanwhile, erin, you caught me at the airport. i apologize. but haugen will be here soon, too. she is flying to the uk. she is testifying to parliament. she has a lot more to say, erin. wow. going straight there. all right. and of course, safe safe trip