President Barack Obama talks to the media while visiting the Hoover Dam during a break from debate preparations Tuesday, Oct. 2, 2012. (AP Photo/Las Vegas Sun, Sam Morris, Pool)

Associated Press
President Barack Obama talks to the media while visiting the Hoover Dam during a break from debate preparations Tuesday, Oct. 2, 2012. (AP Photo/Las Vegas Sun, Sam Morris, Pool)
President Barack Obama talks to the media while visiting the Hoover Dam during a break from debate preparations Tuesday, Oct. 2, 2012. (AP Photo/Las Vegas Sun, Sam Morris, Pool)
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