Representative Steve Scalise wants to take questions on accountability a step further.
From this point of view, Facebook's biggest competitors are work and sleep. He also said the company is investigating every app that had access to a large amount of information before the company moved to prevent such access in 2014 - actions that came too late in the Cambridge Analytica case.
Facebook's stock remains 10 percent below where it stood before the scandal, a decline that has wiped out about $50 billion in shareholder wealth.
Wrapping up his four minutes, Rep. Gus Bilirakis, R-Fla., commended the platform, saying "it's wonderful for us seniors to connect with our relatives". At the very least, we should expect some answers as to why Facebook has been able to get away with harvesting data from users that haven't consented, unless Zuckerberg continues to flawless the deflection techniques he's seemingly getting good at.
Zuckerberg confusedly responded: "Congresswoman, I'm not sure what that means".More news: American leaders target corruption, Maduro as 8th Summit opens in Peru
A day earlier, Zuckerberg batted away often-aggressive questioning from senators who accused him of failing to protect the personal information of millions of Americans from Russians intent on upsetting the US election. Zuckerberg continued walking that line of sounding supportive of regulation in general. His stake in the company is now worth around $66 billion. Information from as many as 87 million users was siphoned to Cambridge Analytica, a British firm with ties to President Donald Trump's 2016 campaign, and Russian operatives used bogus accounts in an effort to sow discord and shape voter opinion during the campaign.
To get there, many Congressmen and Congresswomen have some studying to do.
But what comes next is unclear. Facebook shares rose five percent on Tuesday and added another 0.78 percent Wednesday in what was seen as a sign of confidence in the company after steep losses in recent weeks.
Zuckerberg was adamant that AI would iron out problems of regulating content in the future.
The American people are concerned about how Facebook protects and profits from its users' data, lawmakers said. Several lawmakers touted bills they've introduced.
Rep. Frank Pallone of New Jersey, the committee's top ranking Democrat, sounded pessimistic that Congress will pass anything.More news: Stoltenberg: All NATO allies fully support joint military action in Syria
Yes, Congress was right to shake its finger at Zuckerberg for failing to include more Facebook safeguards for our personal data.
At the same time, Zuckerberg was not willing to let that erode Facebook's fundamental model, in which advertisers make use of the massive data the social network collects on its users - what they like and dislike, where they go, who they link to - to pinpoint marketing targets.
In both hearings before the Senate, Zuckerberg only mentioned two kinds of data: the information that people decide to share on the platform, and the data that is automatically collected about people's behavior.
Seemingly unimpressed, Republican Sen. Stressing that there is an online propaganda "arms race" with Russian Federation and it was important to make sure no one interferes in any more elections including in India, Zuckerberg told Congress that his own personal data was "improperly shared".
Earlier this year, a Belgium court ruled that Facebook's tracking of non-users with the help of social plugins and cookies breaks privacy laws. Would an ad-free, paid version of Facebook work, anyway?More news: Bale will only leave Real Madrid for 'giant club', says Coleman
And yet it has been said that Facebook is the modern day equivalent of a religion and there is something in that. He assured senators the company would handle the situation differently today.