'Cannabis Damages DNA' Claim Debunked By Leading Researcher Ethan Russo

Critics are calling "reefer madness" on a new study from Australia claiming smoking pot will give your kids cancer.

Cannabis has been shown in cell, animal and limited human trials to prevent, halt or kill cancer, researchers note. Australia is getting world-famous for their reefer-madness research, this time for equating pot to the notorious birth defect-causing chemical thalidomide.