Iranian President Hassan Rouhani at the U.N. on Tuesday. Ray Stubblebine/Reuters/Landov hide caption
Ryan Crocker
At a road project in Qalat, Afghanistan, last summer, U.S. forces were providing security. U.S. Air Force Staff Sgt.Brian Ferguson/Reuters /Landov hide caption
Ryan Crocker, U.S. ambassador to Afghanistan, last month in Kabul. Johannes Eisele/AFP/Getty Images hide caption
Officials and mourners prepare to place the coffin of Afghanistan High Peace Council and former Taliban leader Arsala Rahmani in a grave earlier today, in Kabul. Massoud Hossaini/AFP/Getty Images hide caption
Ryan Crocker, when he was ambassador to Iraq, in Baghdad on Nov. 5, 2008. Ceerwan Aziz/Pool/Getty Images hide caption