The claim: (HQ of U.S. Strategic Command), Omaha, 4,041
What it really is: Offutt Air Force Base is the home of the U.S. Strategic Command. This only makes the base more important then most others. It does not mean how ever that this is the site of a FEMA camp.
The base itself isn't that large either, and is bordered by the city of Omaha to the north, along with other residential areas to the west, so it would be pretty difficult to hide a prison camp there.