Going to Area 51

Consider the possibility that the captured aliens want to go back home but the govment won't let them. So the aliens are using mind control to attract the large crowd to Area 51 as a diversion for their escape. It is possible.

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seems like a roundabout plan (maybe the aliens have been stuck watching ferris buelers day off?

if they have mind control powers, why not simply mind control the guy whos got the key?