Mitt Romney speaks in Jerusalem on Sunday, backing "any and all measures" to keep Iran from developing nuclear weapons. Uriel Sinai/Getty Images hide caption

itoggle caption Uriel Sinai/Getty Images

Syrian rebels patrol the streets near Aleppo, Syria. EPA /Landov hide caption

itoggle caption EPA /Landov

Republican presidential candidate Mitt Romney places a prayer note as he visits the Western Wall in Jerusalem on Sunday. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP