 they didn't know the level of the threat i'm sure they didn't know the guy was going to be a sniper but if they had any inkling of an idea of this could have been a potentially fatal threat to the president or even a serious physical injury to the president uh... why didn't they stop president trump from going on stage listen to what i'm telling you the perimeter surveillance team saw this saw this individual which i'm hearing they did and he apparently want to hit some type of a warehouse about three hundred yards from the stage