September 6, 2011
Lieutenant General David Petraeus testifies to the Senate Armed Forces Committee about his nomination to be general and commander of the Multi-National Forces in Iraq at a hearing on Capitol Hill in Washington, in this January, 23, 2007 file photo. Newly retired General David Petraeus is well aware that his swearing-in as the next director of the CIA, expected on September 6, 2011, might stoke concerns about the "militarization" of the U.S. spy agency. It was one of the reasons the storied battlefield commander hung up his uniform last week after a 37-year career in the Army. It may also be why he appears so intent on fulfilling a pledge to leave his military entourage -- "braintrusts" as he calls them -- behind when he arrives at the CIA's Langley, Virginia, compound. REUTERS/Joshua Roberts/Files
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WASHINGTON (Reuters) - Newly retired General David Petraeus was sworn in as CIA director on Tuesday, taking over at a time when the line between the U.S. spy agency and the military has become increasingly blurred in the fight against Islamist militancy.