** FILE ** Syrian soldiers are seen through the damaged window of a military truck that was hit by a roadside bomb in Daraa, Syria, on Wednesday, May 9, 2012. The blast occurred just seconds after a team of U.N. observers passed by. (AP Photo/Muzaffar Salman)

Photo by: Muzaffar Salman

** FILE ** Syrian soldiers are seen through the damaged window of a military truck that was hit by a roadside bomb in Daraa, Syria, on Wednesday, May 9, 2012. The blast occurred just seconds after a team of U.N. observers passed by. (AP Photo/Muzaffar Salman)