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(NEWSER) – A new book written by US commandos guarding the American consulate in Benghazi in 2012 says they could have saved American Ambassador Chris Stevens, but the CIA station chief there refused to let them respond when the attack began.

The book, 13 Hours, was obtained by the New York Times and Fox News in advance of its release. “It had probably been 15 minutes I think, and … I just said, 'Hey, you know, we gotta—we need to get over there, we're losing the initiative,'" one of the authors, John Tiegen, tells Fox. "And Bob just looks straight at me and said, 'Stand down, you need to wait.'" (The CIA station chief is identified only as "Bob.")

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