In 1937, congress passed the Marihuana Tax Act , a law which made cannabis restrictive in the U.S. The act was passed because it “seemed to be that addicts would move from one drug, like heroin, to others, like marijuana, in search of a legal and accessible high,” said Erin Krcatovich, political science professor on Study.com. In order to eliminate drug use, the government … [Read more...] about Did the Du Pont Family Catalyze Cannabis Prohibition?