Mourners carry the coffin of a victim of a bomb attack on a Baghdad cafe on Tuesday. Violence in Iraq has spiked this year. The bodies of 18 men were found Friday in a Sunni area near Baghdad. Sabah Arar/AFP/Getty Images hide caption

itoggle caption Sabah Arar/AFP/Getty Images

Pakistanis check the site of a bomb blast in Karachi on Sunday. Pakistani officials say the blast has killed dozens of people in a neighborhood dominated by Shiites. Fareed Khan/AP hide caption

itoggle caption Fareed Khan/AP