missions in yemen. spokesman said it was also for precautionary measures. peter, ally, tucker, back to you. >> alisyn: elizabeth, thank you for that we don't know much about this threat. we do know a few things. more specific than previous threats. the chatter and details that elizabeth just laid out were picked up from the nsa surveillance program, and that the intent as she said is to attack all western, not just u.s. interest. >> tucker: we know the message that it sounds is that al qaeda is very powerful. powerful enough to force the most serious country in the world to close 21 embassies all qualify as u.s. soil. so, basically, we are taking our crews from al qaeda, still sending a powerful message about strength and weakness. >> look at the map of all of the embassies and con salutes being shut down as a result of this threat allegedly coming out of yemen from a cap, al qaeda, the rainian peninsula. i think, tucker, you make the right point, rarely,