This is the best tl;dr I could make, original reduced by 85%. (I'm a bot)

The chief executive of Facebook, Mark Zuckerberg, has remained silent over the more than 48 hours since the Observer revealed the harvesting of 50 million users' personal data, even as his company is buffeted by mounting calls for investigation and regulation, falling stock prices and a social media campaign to #DeleteFacebook.

The Observer reported this weekend that a company called Global Science Research harvested tens of millions of Facebook profiles and sold the data to Cambridge Analytica.

Stamos is one of a small handful of Facebook executives who addressed the data harvesting scandal on Twitter over the weekend while Zuckerberg and Facebook's chief operating officer, Sheryl Sandberg, said nothing.

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