[sphinx]

They are already here. In fact they held a convention in Boston last July.

I don't think so. The presumption must be that any aliens capable of interstellar travel would be intelligent.

[texasmountainman]

Good point. However, it could be like the plot of an old "Outer Limits" episode where we made contact with an intelligent life form in outer space and arranged for a exchange where we sent a representative to their planet and they sent a representative to Earth. But the one they sent (a real ugly sucker) turned out to be a notorious criminal that the aliens wanted to get rid of. (I guess they did not have the death penalty.)