Hey digger:
The truth is there are no aliens in Area 51. They have been moved long time ago to a secret location west of Salt Lake (the Lake, not the City) in Utah. It is hidden close to an industrial plant so as not to cause any suspision. All the traffic that go in are civilian marked but with gated security. I met a doctor in Salt Lake City, who said, he has been there.
He said, our government works with aliens to develop new technology such as high speed computers and weapons. The aliens think that the interstellar war may spill over to our neck of the woods. So we have to prepare for it. But it is too early to tell the public because a) the aliens are ugly looking to us, so the public may think they are devil's work, b) talk about interstellar war may panic the public and crash the stock market and put us in the dark ages.
I do not know about (a) but I believe in (b), because we had a similar situation long time ago (not the aliens). If you loose faith in the banking system, and run out to get all your money, and everybody does that, the bank can not pay for it - because those monies are invested. So there will be panic on the street, riot and so on. If it starts in US, it will not be long before it catches up in your neck of the woods.
So, you understand...