Placing crypto software in any part of the main archive still has a very important legal problem:
Even though the US may have lifted its restrictions on crypto stuff, some other countries might not (China?, Russia?). This means three subproblems: 1. Placing crypto stuff in the "us" archive will immediately put the mirror sites in restrictive countries at significant legal risk. The owners or sysadmins of the mirrors may suddenly face prosecution for possession, spreading or exporting of crypto stuff. 2. Placing crypto stuff in us/main, us/contrib or perhaps also us/non-free makes it go onto Debian cd-roms, which may thus suddenly become the subject of all sorts of restrictions, because they contain cryptography and are not given away free of charge. 3. Placing crypto stuff in us/main may fool users in restrictive countries into accidentally installing, possessing and using crypto technology, thus placing users at legal risk. (example: A user uses apt to upgrade fetchmail for non-encrypted use and suddenly finds himself arrested for having the crypto version on his system without government permission). Sorry, to be putting down a nice idea, but I would hate to see the project getting in trouble from checking only US laws. -- Standard disclaimer: This message is hastily written, please ignore any unpleasant wordings, do not consider it a binding commitment, even if its phrasing may indicate so. Its contents may be deliberately or accidentally untrue. Trademarks and other things belong to their owners, if any.

