Dan Senor, a senior adviser to Republican presidential candidate Mitt Romney. Jason Reed /Reuters /Landov hide caption

itoggle caption Jason Reed /Reuters /Landov

Iranian President Mahmoud Ahmadinejad during his address today at the U.N. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

Dan Senor, senior national security aide to Mitt Romney, speaks to the press en route to Israel from London on Saturday. Jason Reed/Reuters /Landov hide caption

itoggle caption Jason Reed/Reuters /Landov