welcome them home. anna koran, cnn, kabul. and nic robertson joins us live from london. a bleak picture painted there bianna koran. it sounds as though the withdrawal from bagram didn t go entirely smoothly in terms of the coordination with the local government. what more do we know about that? i m curious if you think that signals more troubles ahead in terms of the security handover. reporter: for operational reasons the u.s. military kept a very care ifful lid on when the were transferring out of bagram. that was a target. for the united states military, it was important to keep operational security. therefore, details of precisely when they were leaving and any handover so that they didn t hand a propaganda opportunity to