Lol, terrorists don't have a back yard. That's why they're called terrorists. They are everywhere including America and they won't go away. They don't need to do anything at the present because we are bring ourselves down with bad military and economic decisions. Attacks like 9-11 won't bring this country down. Making the dollar worthless will. Good luck.
Somehow, someway, they need bases, financing, training, friends. We've taken away their main base, Afghanistan, and through our efforts in Iraq, have made it known that countries friendly to terrorists or inclined to be terroristic themselves, may be risking more than they know.