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The FT interviewed Sheryl Sandberg about her regrets over how Facebook handled the Cambridge Analytica leaks and Russian meddling in the US election. The social network's chief operating officer vows the company will change how it operates and says it is already tightening access to data.
Presented by Hannah Kuchler. Produced by Ben Marino. Edited by Paolo Pascual and Trixia Abao. Additional footage from Reuters.
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