Last fall, the senior Senator from Alaska was the poster octogenarian for political corruption. As of yesterday, Ted Stevens is merely another casualty of abusive prosecutors out to make a name for themselves.

The Justice Department yesterday moved to set aside an October conviction on ethics charges and forgo any future trials for Senator Stevens. He walks free, in other words, an innocent man. In the motion, Justice said it "recently discovered" that prosecutors withheld from the defense notes about an interview last April...