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US President Barack Obama announces his nomination for Defense Secretary, Chuck Hagel and CIA Director John Brennan(not seen) during an event in the East Room of the White House January 7, 2013 in Washington, DC. Brennan -- a 25-year Central Intelligence Agency veteran, is an Arabic-speaking Middle East expert who once told reporters when asked about his work ethic: "I don't do down time." Hagel, 66, a decorated Vietnam veteran, is known for a fiercely independent streak and a tendency to speak bluntly.   AFP PHOTO/Brendan SMIALOWSKI        (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images) Brendan Smialowski/AFP/Getty