washington awkward reversal u.s. military promptly withdraw old video islamist militants release friday evidence fatal raid yemen american special force week counter terrorism success expert radical islamist media say footage unknown militants appear part videos first release jihadists online 10 years ago undermine pentagon explanation value u.s. central command spokesman confirm video remove website content old want appear try pass old video new video spokesman colonel john thomas say late controversy surround raid branch al qaeda yemen first operation authorize president donald trump commander chief military say video find sunday operation al-bayda province u.s. navy seal militants civilians kill u.s. central command spokesman say friday clip ski-masked man encourage people build bomb one example volumes sensitive al-qa eda terror-planning information recover operation department defense post video web site friday pull within several hours question begin arise age footage appear similar videos surface online 2007 video clip post abruptly take one 25 videos appear publish 2007 say adam raisman senior analyst site group monitor extremists online add difference pentagon video english subtitle add pentagon spokesman captain jeff davis say video still worth even may create early matter video make still illustrative intentions davis say u.s. navy seal william ryan owens kill raid pentagon say also kill 14 militants medics scene say 30 people include 10 women children also die u.s. military officials tell reuters week operation go ahead without sufficient intelligence grind support adequate backup preparations result three officials say attack seal team find drop onto reinforce al qaeda base defend landmines snipers large expect contingent heavily arm islamist extremists central command say early week ask operations believe good chance success base plan pentagon spokesman davis say element surprise lose raid u.s. military release withdraw old islamist video yemen raid