Aerial photo on Wikipedia from 1996 doesn't appear to show that facility.
Whiteman is a B-2 base for the 509th bomb group and while it could be related to the special needs of that aircraft, it's location across from the baseball fields seems a bit, um, insecure. There is also a separate, secure, weapons storage area at Whiteman, which argues against it being something super secure.
Military - Air Force 
Whiteman is a B-2 base for the 509th bomb group and while it could be related to the special needs of that aircraft, it's location across from the baseball fields seems a bit, um, insecure. There is also a separate, secure, weapons storage area at Whiteman, which argues against it being something super secure.
Post stockade, maybe?