where defense secretary mattis performed. both chambers were in attendance. also joining chief carom is buck elton, deputy director for special operations on the joint staff. after the classified briefing, the chairman of the house armed services committee, marks tho thornbury said you re never satisfied. one of my colleagues reminded me we don t flow all the situation from las vegas yet, referencing the resent matt shooting at a country music concert on the strip, shep. shepard: jennifer, what do we know more about the ambush? we know the 12-man team was on an overnight reconnaissance mission to collect intelligence in the region, which began on