I think we can agree that there are already ISIS people in the U.S., since there is talk that they have a number of “sleepers” here in Canada now, which isn’t including the “home grown” kind.
As for what sort of attacks they could pull off, I’d imagine they’d go after people rather than hard targets, like 9/11. Suicide bombers on buses an trains, Mumbai style mall/hotel attacks, stuff that’s generally pretty easy to do but’ll still create a large pile of bodies and scare the sheep into submission.
Canadian Patriot. Becoming self-sufficient.