The chemical THC which appears as white crystals, almost like snowflakes in appearance, is found on the bud of marijuana plants. This chemical was used in the 1970's as medicine to cure sickness. Now, marijuana being illegal is stopping cancer sufferers, people with insomnia, depression, burns, scars and other things from getting the cure they deserve. If everyone was aware of the medicinal advantages of THC on marijuana bud, pharmaceutical companies and the government would be losing money on "substitution" medicines. Medicines that dont work, and medicines which do not cure cancer and in the long term, leave people with liver failure, and in some cases death.