[wahern]

Previously the U.S. government enjoyed conflating cryptographic algorithms with munitions.

See http://cr.yp.to/export/status.html

Maybe they were thinking (light heartedly) that a practical post-quantum signature scheme might raise the attention of the government again. So they're giving a shout-out to the legions of governments officials that might find themselves on that page once they whip themselves into a panicked frenzy.