If terrorists didn't already have ideas like the batman shooting in mind, they do now. What a fish in a barrel situation. Couple hundred victims packed in a can, with the probability of defending themselves at zero. All guaranteed by gun free killing zones like this. This kind of thing happened frequently in Israel, until they wised up. Now, EVERYONE carries anything they wish to or can afford. Handguns, rifles, Uzi machine guns. Surprisingly, terrorist activity is pretty low, considering the country is surrounded by muslim crazies who are foaming at the mouth trying to exterminate them.