As TalkLeft reported here, the Seventh Circuit reversed Georgia Thompson's conviction and ordered her immediate release from prison before issuing a written decision. (Additional TalkLeft posts here and here raise questions about US Attorney Biskupic's handling of the prosecution.)

Today the Seventh Circuit issued its well-reasoned opinion (pdf) explaining the reversal. There's a lesson in it for Congress, as well as for overreaching federal prosecutors:

This prosecution, which led to the conviction and imprisonment of a civil servant for conduct that, as far as this record shows, was designed to pursue the public interest as the employee understood it, may well induce Congress to take another look at the wisdom of enacting ambulatory criminal prohibitions. Haziness designed to avoid loopholes through which bad persons can wriggle can impose high costs on people the statute was not designed to catch.