That's debatable. I have to think of situations like one I saw in the news recently where some hero decided he should shoot an unarmed robber in the mall. I thi

That's debatable. I have to think of situations like one I saw in the news recently where some hero decided he should shoot an unarmed robber in the mall. I think there would be far more situations like this if everyone was packing. People aren't always very rational and if every time a major conflict breaks out the guns come out you are going to have a far bigger issue than the occasional terrorist attack. I'm not saying I don't agree that well trained individuals shouldn't be able to carry and provide safety to everyone around them, but I don't think the grand majority of the populous would be willing to put in the time to have this kind of training. Even if everyone has a gun, handling a terrorist in a crowded space can be a very tricky ordeal and you could easily have people killing each other with crossfire if everyone is trying to take them out.