Texto informativo: "Reefer Madness".

[...] known as Reefer Madness. - Nov. 12, 2006 at 12:21 PM

"To make a long story short, during the first decades of this century, opium was made illegal to kick out the Chinese immigrants who had flooded the work-force. Cocaine was made illegal to repress and control the Black community. And, marijuana was made illegal in order to control Mexicans in the Southeast (and Blacks.) All these laws were based mainly on emotional racism, without much else to back them up -- you can easily tell this by reading the hearings held in state legislatures. Also at this time, the end of Prohibition left us with a large force of unemployed police officers, who looked for work enforcing the new drug laws. Consequently, these same police officers needed to convince the country that their jobs were important. They did so by scaring parents about the dangers of drugs. All this set the stage for a law passed in the Federal legislature which put a prohibitive tax on marijuana. This is what killed the hemp industry in 1937, since it made business in hemp impossible.[...]this period of time became known as Reefer Madness. "

in Cannabis FAQ, EROWID, by Brian S. Julin