Liquor and wine is illegal in the U.S. unless it is radioactive. When tested, drinking alcohol is required to have at least 400 radioactive decays per minute for each 750 ml.

Explanation: The United States government has decided that alcohol for consumption must be made from “natural” materials, such as grains, grapes, or fruit. That rules out alcohol made from petroleum. Such alcohol is chemically identical to natural alcohol and just as safe – there’s no difference in taste — so why this rule? The reasons have to do with history (keeping alcohol more expensive, a goal of the anti-alcohol lobby) and minimizing competition (a goal of the liquor lobby).