Posted by Jonathan Adler to Volokh.

This Slate article about the federal Office of National Drug Control Policy's new anti-marijuana ad, "Pete's Couch" prompts the following question: If one of the greatest harms of marijuana use is that it makes you lazy -- as one would expect it to be if the federal government is producing ads about it -- why is marijuana use a criminal offense?

Via a post by Jonathan Adler at Volokh. Interesting comments there.