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Scrutinizing The Surge Photos

General David Petraeus, left, and U.S. Ambassador to Iraq Ryan Crocker testify before the Senate Foreign Relations Committee on Capitol Hill Tuesday, Sept. 11, 2007, in Washington. Later in the day, Petraeus and Crocker will also appear before the Senate Armed Service Committee to continue delivering their reports on progress made in Iraq since additional U.S. troops were sent to the nation earlier this year.

(Photo: GETTY IMAGES/Alex Wong)