. >> reporter: most at risk, haughen told the senate committee, are our kids. >> kids who are bulliedullying follows them home. it follows them into their bedrooms. the last thing they see before they go to bed is someone being cruel to them, the first thing they see in the morning is someone being cruel to them. >> reporter: she leaked internal data she says shows the company knows instagram, which is owned by facebook, can be harmful to teen girls. >> facebook knows ice amplification algorithms -- things like engagement-based ranking on instagram -- can lead children from innocuous topics, like healthy recipes, to anorexia-promoting content over a very short period of time. >> reporter: an estimated 72% of teenagers are on instagram, making it a powerful force in their lives. >> being a teenager is rough enough in real life. and now that has carried over to the internet. >> reporter: britney hennessey created a program to help online influencers build their brand. >> for a teenager, constant access to what someone else is doing, there's a lot of fomo, a lot of comparison. add on tha

frances haughen, the former facebook employee who sounded the alarm, testified before a uk parliament joint committee monday. >> facebook's own research says now the bullying follows children home. it goes into their bedrooms. >> reporter: lawmakers also expressed concerns that tiktok is tied to china's communist government. allegations the app's parent company, fight dance, denies. >> if it were not accurate, you would answer the questions, and you have dodged the questions more than any witness i have seen in my nine years serving in the senate. >> reporter: the company says it stores all of tiktok's u.s. data in the united states, and has recently tightened its privacy practices for children. skyler henry, capitol hill. >>> this morning, president biden is back in washington after campaigning for terry mcauliffe who's running for governor of virginia. the election is next week. last night in arlington, mr. biden headlined a rally for mcauliffe who's locked in a tight race with his republican rival glenn youngkin. the race is seen as a first major test for democrats since > d the gu

been successful over the years staving off regulation but in that hearing room listening to frances haughen>>> now to a mother's incredible rescue of her toddler saving him from being swept away after the boy fell down a manhole at a new jersey playground. t.j. holmes joins us now with a 911 call and the body cam video. this was something. >> look, parents certainly know, anybody who has been around little kids it only takes a split second f setng to happen. the kid kind of disappeared right before your eyes dropping down into this manhole and sweeping water below, rescuers had to be called but by the time the rescuers had got there momma had already handled the rescue. >> henry. henry. henry. >> 911, where is your emergency? >> i need someone. i need someone to come. there is an open manhole. >> reporter: you're hearing a mother's pleas for help to 911. >> there is an open manhole in union, new jersey. >> ma'am, give me an address. ma'am, what's going on? >> my son fell into an open manhole. >> reporter: her 14-month-old had fallen seven feet down through an open manhole at a local park la