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Rep. Heller: "If a Facebook user deletes their account, do you delete their data?” Zuckerberg: “Yes” Heller: “How long do you keep a user's data?” Zuckerberg: “I don't know the answer to that." Live updates: https://t.co/q55BssYnCP https://t.co/d4ryuW1hDT — PolitiTweet.org