i have seen tanks alot like what you described in oak ridge.. yeah i didnt want to think thats what they are for. jeez dude you have brass balls to be poking around in that kinda place.. you said this base is 45min from where you are? do they have the us shield signs up on a fence or anything.? you know the us property signs ? im intrigued by how similar what i saw was to your description. i wasnt a stargate fan other then i think sg universe. at least i think that was the title.