Chaiyah,
For now I go with Rosborne. I think he is correct in his assumptions.
But a further note. IMO you are worrying youself unecessarily. No government, especially one as large as the one we are saddled with, could keep that much of a secret. First that would imply an intelligence far superior to any that any of our elected officials have ever shown
Some examples being----
Nixons Plumbers, Carters desert rescue operation, Reagans "Trees cause Pollution", Clintons fellatio experience, Congressman Mills skinny dipping with the Ray girl in the Tidal Basin, Harts entering a motel with a woman not his wife,. Kennedy photographed entering a hotel with two hookers. Another Kennedy driving off a bridge and not reporting or attempting to rescue Mary Jo for many hours
These are not the actions of a class of people whom I would term brilliant enough to pull off concealing a cosmic invasion. They probably would be dumb enough to try it though.
This is why we attempt to have a government of the people.
Second, If Aliens could be shown to be invading it would benefit the elected officials more than almost any other scenario that could be envisioned. People usually turn to government for help (however unadvisedly) when something big happens. The little War in the Falkland Islands ensured Margaret Thatchers future for years. Bush probably has that in mind wiith the Iraq problem. But there are other more reasonable reasons to interfere in Iraq.
Third, All governments consider themselves indespensible. The President, Quite a few military commanders, and some civilians all have safe places to run to. They consider themselves necessary to conduct a war on our behalf, even Patriotic. There are also flying command posts for several general officers where they could stay airborn for days if necessary. Frankly I regard this as prudent.
I think you are going to owe me a coffee about the middle of October