I have a friend who regularly talks about how easy it would be to 'destroy' (kill power grid, poison water supply bomb pretty much anything) NYC (he's from up t

I have a friend who regularly talks about how easy it would be to 'destroy' (kill power grid, poison water supply bomb pretty much anything) NYC (he's from up there) without using the airlines. Even before 9/11, it was by far much easier to 'destroy' a city than it is to hijack an airplane to do whatever.