Is anyone else kinda shocked it took terrorists so long to figure out car + sidewalk?

All the shit with shoving a bomb in your underwear and getting onto a plane. Refining hydrogen peroxide and so on. All you really needed was a credit card and a Hertz.

And I know it might feel like I might be making light of today’s horrible incident. But I am not. I just don’t see how you do anything against this tactic. WhiteISIS is even using it.