Well, seems like that "mysterious FEMA prison" down by Yuma, is nothing more than another Arizona State Prison. Not a FEMA vehicle in sight, but lots of the usual DOC stuff.
I could swear I hadn't seen it listed before, but maybe I just missed it. Regardless, this appears to be yet another debunked conspiracy theory. Watch yourselves, folks...there's a lot of misinformation out there, some well-meaning, some purposeful.
Verify, verify, verify!!