Area 51's defences are so extraordinary and so high that you can't get within a 500 feet of the actual Area 51 base, much less any aircraft flying in it's airspace is or as I would assume, shot down immediately.
And just what are Area 51's defenses anyway? Any proof of ANY aircraft EVER being shot down? Ive never heard of it.
Now What I want to know and what I don't get, is how the boeing, a boeing for christs sake, make it all the way to the pentagon to actually do damage to it.
Well get onto Google Earth or another earth mapping/satellite photo site and take a look at that area. You MIGHT notice that the Pentagon is not that far off of the approach to Reagan National Airport. If someone decided to crash into the Pentagon off that route, it would be less than 30 seconds from deviation to impact. In other words, not that hard. Especially since the Pentagon, at that time, had NO external defenses.

