Anyone remember when Area 51 was "moved" for a while?

Does anyone else remember when they discovered that they had like..poisoned the ground with nuclear testing or something and so they had to move stuff out of Area 51? I don't actually remember what happened with all that, like if they eventually moved stuff back in or what. But still, I think that could be used as a sort of sequel idea to this movie. Because really while it was a little boring it wasn't really bad. I think a new movie, filmed now, could be a GREAT sequel!

The Square Root of Nine is Three!