the troops had during the battle and how the mission was approved from the beginning. >> the questions include, did the mission of u.s. forces change during the operation? did our forces have adequate intelligence, equipment and training? was there an assessment of threat in the area accurate? >> reporter: a key question, did specific failures result in the 12-man team being attacked by approximately 50 heavily armed isis affiliated fighters and why did it take 48 hours to find the body of sergeant la david johnson? >> how did they become separated during the engagement, specifically sergeant johnson. >> reporter: within days, top military officials were aware what was supposed to be routine was plagued with problems. on the intelligence, officials originally said they worked off the best information they had. >> this was on an going operation, series of operations