>> when did you know civilians were killed in a straight? >> several hours afterward. >> this after the defense department repeatedly declined to confirm civilian casualties and days following the site. the top republican is revealing the suicide bomber who killed 13 us servicemembers was released from bagram air base. a republican on the house appropriations subcommittee on defense told fox news sources say the prisoner was released after the telegram took control of facilities, that attack was just a few days after he was apparently released from bagram and representative calvert said there were 7000 prisoners held their, calling them the worst of the terrorists and they believe the isis case suicide bomber was one of them. >> thanks.