Christianity did its share of convert or die as junkernaut said. I really feel that if it were Christians over there in Palestine getting their land stolen and people massacred they would fight back with any weapon they possess, one of which happens to be suicide bombers. Muslims are amonst us, and most probably see the U.S. on the side of Israel against their people, so it's a serious threat. If it weren't for our biased foreign policy, we would probably have good relations with these people.