Presented by Hannah Kuchler. Produced by Ben Marino. Edited by Paolo Pascual and Trixia Abao. Additional footage from Reuters.
There are three big questions that Facebook needs to answer about the Cambridge Analytical revelations. The first is why didn't it do more back in 2015 when it discovered that Cambridge Analytica had obtained this data, which it did not have permission to use. Facebook asked Cambridge Analytica or to delete it. The company says that it didn't delete it, but we don't know that for sure, and if they'd have called in regulators or law enforcement, they might have been able to find out more.
The second big question is whether this could happen again. Facebook has tightened its privacy policies since 2015. So for example, it is harder for you to expose your friends data accidentally to an app developer. But the questions remain about its privacy policies which are very intricate, and whether people properly understand them, and they're giving that consent.
The third big question is whether Facebook can be allowed to continue to self-regulate. Politicians and regulators across the world are asking hard questions about how you regulate social media platforms that have become incredibly powerful, and yet are difficult to understand how they work inside. Their influence on elections recently has only heightened the pressure. Hannah Kuchler, Financial Times, San Francisco.