Ryan Crocker, U.S. ambassador to Afghanistan, speaks during a press conference at the U.S. Embassy in Kabul, Afghanistan, on Wednesday, May 2, 2012. (AP Photo/Ahmad Jamshid)

Photo by: Ahmad Jamshid

Ryan Crocker, U.S. ambassador to Afghanistan, speaks during a press conference at the U.S. Embassy in Kabul, Afghanistan, on Wednesday, May 2, 2012. (AP Photo/Ahmad Jamshid)