Send a Quote Enter a brief message. SendOk2 “Marijuana is the most violence-causing drug in the history of mankind.” ~ Harry J. Anslinger (1892-1975) Assistant Prohibition Commissioner in the Bureau of Prohibition, first Commissioner of the Treasury Department's Federal Bureau of Narcotics (FBN) (1930-1962, 32 years), US Representative to the United Nations Narcotics CommissionSource: Gore Files