Ashton Carter, President Barack Obama’s choice to be defense secretary, testifies on Capitol Hill in Washington, Wednesday, Feb. 4, 2015, before the Senate Armed Services Committee hearing on his nomination to replace Chuck Hagel as Pentagon chief. Carter, who previously served as the No. 2 Pentagon official, is expected to easily win Senate confirmation but will face tough questions about Iraq and other issues. (AP Photo/J. Scott Applewhite)
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