They Walked Among Us!

And apparently they were dumbasses.

Most telling quote:

"I'm gonna tell you there's two major buildings that you gotta blow up. The Empire State Building and … the uh, and the uh, Sears Tower. With those two buildings down, all radio communication is out. . . ."

To be sure, as was once said of the IRA bombers, they only have to be lucky once.