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Julian Assange -- founded WikiLeaks in 2006, and in December 2007 the site posted a U.S. Army manual for soldiers dealing with prisoners at Guantanamo Bay, Cuba. It drew outrage from critics of the U.S. handling of inmates and from the U.S. government, which condemned the leak as illegal. In the coming years, WikiLeaks exposed documents from the Church of Scientology, Sarah Palin, a far-right British party and New Yorkers terrified by the September 11, 2001, attacks. Then in 2010, the site posted a classified U.S. military video of an Apache helicopter mistakenly gunning down two journalists and Iraqi civilians. It was handed to WikiLeaks by Manning along with the classified documents.