In the United Kingdom ... the country's top drug adviser was recently fired for publicly criticizing his own government's drug laws. The adviser, Dr. David Nutt, said in a lecture that alcohol is more hazardous than many outlawed substances, and that the United Kingdom might be making a mistake in throwing marijuana smokers in jail. His comments weren't the idle musings of a reality-insulated professor in a policy job. They were based on ... a scientifically compiled ranking of drugs, assembled by specialists in chemistry, health, and enforcement, published in a prestigious medical journal two years earlier. The list, printed as a chart with the unassuming title Mean Harm Scores for 20 Substances," ranked a set of common drugs, both legal and illegal, in order of their harmfulness - how addictive they were, how physically damaging, and how much they threatened society. Overall, alcohol is far worse than many illegal drugs. So is tobacco. Smoking pot is less harmful than drinking, and LSD is less damaging yet. Nutt says he didn't see himself as promoting drug use or trying to subvert the government. He was pressing the point that a government policy, especially a health-related one like a drug law, should be grounded in factual information.