medical officer at university hospital's case medical center in cleveland and specializes in pediatrics. is any er prepared for this situation? >> we drill for tragedies like this. we do mock drills, tabletops and talk it through, we bring in actors to portray victims and you drill it and the point's well taken. how do you prefair for a tragedy of this magnitude? how do you prepare for your own emotions? you saw the president take this very much to heart so hospitals do prepare. i think judging the last ten years better prepared than ten years ago but the emotion sometimes taking over and sometimes folks in trauma centers or children's hospitals have an adrenaline rush for two, four, six hours focused on the patients and getting through and then we're human and after that phase it's important that the caregivers are offered mental