This topic reminds me of something quite funny.
A few years ago, a guy bought some gov't surplus parts at
auction. When he took delivery, he realized that some of
the parts were for an SR-71 ( Blackbird ). He put them on
eBay and people started bidding. Well, somehow the gov't
found out about it and had the auction shut down. Next,
they went after the seller for selling classified material.
Well, the guy had a receipt from the auction, so the gov't
investigators couldn't do much in the way of prosecution.
He did loose the parts, but he was repaid. Seems the parts
weren't surplus afterall.
