Former Brit drugs chief says findings back aggressive anti-booze campaigns
                                
                                
                                    (Newser) -
                                    Alcohol is more dangerous for humans than crack or heroin, according to a surprising assessment by a British drug expert. Professor David Nutt's scoring system ranked alcohol three times more harmful than cocaine or tobacco; ecstasy, mushrooms, and LSD were among the least harmful. The rankings were created based on...