Richard Nixon's speech announcing the War on Drugs.

Here's the trailer for Reefer Madness, the infamously over-the-top 1936 anti-marijuana propaganda film, in which use of the drug leads directly to madness, rape, murder, and suicide.

"This is your brain on drugs," a famous televised Public Service Announcement from the 1980s.

"I learned it by watching you," another memorable Public Service Announcement from the 1980s.