Facebook concealed the facts.

Facebook's failure to acknowledge and to act makes it morally bankrupt.

This research is the very definition of a bombshell.

I think people tend to lose sight of the real world impact here.

The buck stops with him.

Facebook exploited teens using powerful algorithms that amplified their insecurities.

Thank you for an extraordinary testimony. I think that anybody watching would be impressed and much better informed and you have done America a real public service.

your being here really sends a profound message to our Nation that one person can really make a difference

I think its actions and its failure to acknowledge its responsibility indicate moral bankruptcy.

Reform of Section 230, so there's some legal responsibility, so people have a day in court, some kind of recourse, legally, when they're harmed by Facebook.

Being honest and acknowledging that Facebook has caused and aggravated a lot of pain simply to make more money...

Mark Zuckerberg ought to be looking at himself in the mirror today and yet rather than taking responsibility and showing leadership, Mr. Zuckerberg is going sailing.

They need the tools. They need to be empowered...

If Facebook wants to discuss their targeting of children, ... I am extending to you an invitation to step forward, be sworn in, and testify before this committee.

That algorithm could be changed.

Holding social media companies accountable for what they do to kids was the subject of a Senate hearing last week chaired by Democrat Richard Blumenthal of Connecticut.

What is it about Facebook's tactics of hooking young people that makes it similar to what Big Tobacco has done?

In the end, the buck stops with Mark. There is no one currently holding Mark accountable but himself.

The Committee is in recess.

But Mark Zuckerberg's new policy is no apologies, no admissions, no acknowledgement, nothing to see here.

Finstas are fake Instagram accounts. Finstas are kids` secret second accounts.

Exactly right, Chris. And not only were they profiting from the destruction of kids` self-image and creating these vulnerabilities or exacerbating them.

Will you commit to ending finsta?

How can we, or parents or anyone trust Facebook?

The only thing that`s unusual about Britney Spears` story is that people are paying attention to it.