[Answer] The 2014 Oscar-winning documentary "Citizenfour" is about which controversial person?

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The 2014 Oscar-winning documentary "Citizenfour" is about which controversial person?

• Edward Snowden:Citizenfour is a 2014 documentary film about Edward Snowden and the NSA spying scandal. The documentary gives audiences access to Edward Snowden as he hands over classified documents providing evidence of illegal wiretapping practices of the US National Security Agency (NSA) and other intelligence agencies. Snowden chose his codename as a nod to three NSA whistleblowers who came before him: Bill Binney, J. Kirk Wiebe, and Thomas Drake. Citizenfour received critical acclaim upon release, and was the recipient of numerous accolades, including Best Documentary at the 87th Academy Awards.

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