In this photo provided by Mouaz Moustafa and the Syrian Emergency Task Force, Sen. John McCain, accompanied by Moustafa (right) visits rebels in Syria on Monday. McCain, who slipped into the country for a surprise visit, favors providing arms to rebel forces in Syria. Mouaz Moustafa/AP hide caption

itoggle caption Mouaz Moustafa/AP

Iraqi anti-government gunmen from Sunni tribes in western Anbar province march during a protest in Ramadi, west of Baghdad, Friday. Azhar Shallal/AFP/Getty Images hide caption

itoggle caption Azhar Shallal/AFP/Getty Images

Residents visit the tomb of a loved one at the New Kerbala cemetery in the holy city of Kerbala, Iraq, in 2007. Mushtaq Muhammad /Reuters /Landov hide caption

itoggle caption Mushtaq Muhammad /Reuters /Landov