could happen on the heels of these two. what kind of measures are in place to prepare for something else that could conceivably happen? well, one step taken, i was at national airport getting ready to fly it la guardia when this occurred. they shut down air traffic going in and out of city. now apart from shutting down air traffic, you are talking about an enormous disrupgs ek nom lick for the nation right now with the air traffic not going in. people are going to they are going to err on the side of caution. larry i wanted to ask you all morning, that correspondents have been saying, particularly bob and jim, and andrea mitchell there was no warning attached to this event. right. generally speaking, do we get some kind or do u.s. officials are government agencies get some kind of warning from a particular group or is this pretty i mean fairly typical in terms of an event happening without forshadowing. no, katie, this unfortunately