have the presumption ever innocence of the just as reminder the 9/11 case is in the military system and decade later that trial is still not underway. on issue of airport security the commissioner said it is still not where it needs to be especially given evolution and threat of hijackers and box cutters to non-metallic explosive used by al qaeda in yemen. that was the group behind last two major plots against the u.s. using aircraft. >> transportation security. with significant federal funding it. sa has deployed large numbers of enhanced screening equipment, using passenger check point, explosives detection and checked bag screening. unfortunately the explosives detection technology lacks reliability and lags in its capability to automatically identify concealed weapons and explosives. >> reporter: in the last few minutes i think this is going to be the main headline out of that news conference today. almost every commissioner saying they're disappoint