The Latest: Is Facebook really changing, or just stalling?

WASHINGTON — The Latest on Facebook’s privacy scandal and Mark Zuckerberg’s congressional testimony (all times local):

1:45 a.m.

Experts are questioning whether Facebook is fundamentally changing its relationship with users or just tinkering around the edges of its deep need for user data to sell ads.

CEO Mark Zuckerberg is testifying before Congress on Tuesday and Wednesday in the wake of revelations that pro-Donald Trump data-mining firm Cambridge Analytica scooped millions of Facebook users’ data without their knowledge.

Researchers say it’s unlikely that Facebook will upset its business model, which allows advertisers to precisely target users, even as the company clamps down on the information it passes to app developers.

And Wall Street analysts are counting on Facebook to survive a user revolt, with shares up some 4 per cent after a nine-month low hit late last month.

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12:10 a.m.

After privately assuring senators that his company will do better, Facebook CEO Mark Zuckerberg is undergoing a two-day congressional inquisition that will be very public — and could be pivotal for his massive company.

Zuckerberg visited with senators in closed-door meetings Monday, previewing the public apology he plans to give Congress on Tuesday after revelations that the data-mining firm Cambridge Analytica gathered personal information from 87 million users to try to influence elections.

Zuckerberg will testify before a joint session of two Senate committees on Tuesday and before a House panel on Wednesday.

In prepared testimony released Monday by the House Energy and Commerce Committee, Zuckerberg apologizes for fake news, hate speech, a lack of data privacy and Russian social media interference in the 2016 elections.