From Scientific Activist:
Image from the BBC
The Class of a drug appears to have little to no relation to its actual danger. Although heroin and cocaine, both Class A drugs, received the highest harm ratings, other Class A drugs (ecstasy, LSD, and 4-MTA (an amphetamine derivative)) were rated as being less harmful than alcohol or even tobacco. In fact, of the twenty substances surveyed, alcohol was (it pains me to say) ranked the fifth most harmful.
And Yet Politicians would NEVER admit to it.