Hemp is a plant that seems to have 1,001 uses. Its proponents say that it could solve the world's hunger problems if it was used as food. It could produce enough paper for the entire U.S. on just 1% of its acreage, and could be the durable, eco-friendly fabric the world needs. But since the Marijuana Prohibitive Tax Act of 1937, growing hemp on U.S. soil has been illegal. The notion is that the production of hemp, which is wrongly associated with marijuana, would open up the floodgates for drug legalization. But fans of the plant believe that a conspiracy among textile manufacturers might also be involved.