Today is a notable occasion. It is the 30th anniversary of a Florida man gaining the ability to use marijuana for medical purposes and of the beginning of a bafflingly hypocritical stance by the federal government. One of the strangest ironies in the government’s war on marijuana is demonstrated by a man named Irv Rosenfeld. The federal authorities still officially maintain the legal fiction that marijuana has no accepted medical use; the substance is still classified in Schedule I, and medical…