President Barack Obama waves as he exits Air Force One upon his arrival at McCarran International Airport Tuesday, Jan. 29, 2013 in Las Vegas. (AP Photo/David Becker)

Associated Press
President Barack Obama waves as he exits Air Force One upon his arrival at McCarran International Airport Tuesday, Jan. 29, 2013 in Las Vegas. (AP Photo/David Becker)
President Barack Obama waves as he exits Air Force One upon his arrival at McCarran International Airport Tuesday, Jan. 29, 2013 in Las Vegas. (AP Photo/David Becker)
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