Recreational marijuana is legal in some states, and most Americans approve of the medical use of the drug. But former reporter Alex Berenson argues that legalization has been built on myths. He reveals that almost no one is in prison for marijuana; that a tiny fraction of doctors write most authorizations for medical marijuana; that opiate and cocaine use is linked to marijuana use; and that THC - the chemical responsible for the drug''s high - can cause psychotic episodes.Recreational marijuana is legal in some states, and most Americans approve of the medical use of the drug. But former reporter Alex Berenson argues that legalization has been built on myths. He reveals that almost no one is in prison for marijuana; that a tiny fraction of doctors write most authorizations for medical marijuana; that opiate and cocaine use is linked to marijuana use; and that THC - the chemical responsible for the drug''s high - can cause psychotic episodes.