The Consumer Product Safety Commission is trying to ban the private ownership of a lot of common chemicals and granulated metals. The items on the list all have some naughty uses, but they also have an awful lot of legitimate uses. If this goes down, you'd need to have a Federal explosives manufacturing permit to have the materials on the list.... materials like "salicylate compounds," which read literally would prohibit posession of aspirin.

Passing overly broad laws is just a bad idea, no matter what your politics. Are model rockets really a threat to national security?

For more information on the CPSC injunction, see this page at United Nuclear, which contains the complete text. (There is a donation link on the page, but I do not know anything about the legal defense fund they are promoting.)

Update: Here is an article at Wired about the raid on United Nuclear.