Thanks to Matt Yglesias for posting the drug criteria used by the FBI in deciding who can and cannot work for them.

FBI Employment Drug Policies

You're toast if you answer "yes" to any of the following questions:

Have you used marijuana at all within the last three years?

Have you used marijuana more than a total of 15 times in your life?

Have you used any other illegal drug (including anabolic steroids after February 27, 1991) at all in the past 10 years?

Have you used any other illegal drug (including anabolic steroids after February 27, 1991) more than a total of five times in your life?

Have you ever sold any illegal drug for profit?

Have you ever used an illegal drug (no matter how many times or how long ago)while in a law enforcement or prosecutorial position, or in a position which carries with it a high level of responsibility or public trust?

We like Matt's question, not addressed by the policy:

"Suppose I never used drugs and I never sold them for profit but I have sold them at a loss. Do we want inept drug dealers working for the FBI? "