Another What if, bomber situation.
This guy is wearing a heavy coat, and or back pack that isn't your regular collage student.
for argument sake, he doesnít say BOMB, but begins shouting in a language that sounds like Arabic, and begins to reach for the back pack or inside his jacket.
I think this decision would be like in a lot of other situations, to shoot or not to shoot, a second to decide, and a lifetime to live with the decision, or possible not.
So, you have to decide what to do, it does not seem their is time for you to retreat, if it is real, you have to act now.
I know the odds are probably astronomical, but what else would you take into consideration. In the whole second or maybe two you have to decide.