Reps. Maurice Hinchey (D-NY), Ron Paul (R.-Tex.), Sam Farr (D-Calif.) and Barney Frank (D-Mass.) are asking the GAO to investigate how much the Feds are spending trying to enforce federal laws against medical pot in states that permit it. Perhaps, five or six years and dozens of ruined lives down the line, we might find out. And while it's an interesting rhetorical gesture, I very much doubt the revelation of the costs–at what cost itself?–will budge a single drug warrior from his maniacal course.