united states because al qaeda's presence is substantial and the al qaeda group that is based there is responsible for the detroit-bound airliner and it has seen as the most pressing and terrorist threat to the united states the situation could become a real problem. >> thank you. >> thank you. in order to become an american citizen, there's this basic level of knowledge. you are expected to know out there. it turns out the only people that seem to know the correct answers are the new immigrants forced to learn it? when did u.s. citizens stop knowing simple facts? a test up next for you.