The SECRET stuff can actually be sent by the USPS. It just has to be packaged correctly, properly labeled, and you have to select the appropriate options for s

The SECRET stuff can actually be sent by the USPS. It just has to be packaged correctly, properly labeled, and you have to select the appropriate options for sending it. I did the courier job briefly when I was working for what was then the Defense Communications Agency, and we were transmitting SECRET documents. I had the hand-carried copy, and they sent a second copy via USPS. I even had a nifty courier badge, which was created by using a typewriter to fill out a small government form that was printed on orange card stock, and then the whole thing was laminated together. No pictures, no fingerprints, no signatures. The security agents at Washington Regional Airport sure took notice....