From what I saw on the making of that movie they wasn't suppose to mention Area 51 or things about it to get military support for the movie, they got around it & did it anyway, somewheres with the line 'plausable deniability' when the (movie) president asks why he didn't know about it.

#695empeg-car Mk2GRN& a mere 12Gig
"buyers regrets,NO"