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Why Did Violence Plummet? It Wasn't Just the Surge.

Throughout the summer of 2007, as the troop surge in Iraq reached full strength, Gen. David H. Petraeus kept waiting for the tide to turn. By summer's end, the U.S. commander in Iraq got his wish. The high of 1,550 attacks a week fell below 800 -- nearly a 50 percent reduction. It has continued to...
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By Bob Woodward