] U.S. authorities charged four people in Detroit on
] Wednesday with e-mailing fraudulent sales pitches for
] weight-loss products, the first criminal prosecutions
] under the government's new "can spam" legislation.

Turns out this is an FTC investigation for fraud and the Spam charges are just an add on. This probably doesn't mean they've actually started enforcing these laws in general.

CNN.com - First four charged under 'can spam' law - Apr 28, 2004