As Facebook revelations stir user and investor blowback: Can Zuckerberg and Sandberg fix what's broken?

ANALYSIS: Nobody shakes off outrages over data privacy like Facebook. The company has built a culture and business model on pushing the envelope around data use since its founding. But that usually triggers a cycle of user anger that peaks with some weeping and gnashing of teeth, and then … nothing much. Promises to do better. […]