GRANVILLE -- Marijuana is about as harmless as a cup of coffee but far less dangerous than alcohol and tobacco, an advocate for changes in marijuana laws told a Denison University audience of about 200 Tuesday night. Allen F. St. Pierre, executive director of the National Organization for the Reform of Marijuana Laws, often used the alcohol analogy to make his points favoring general decriminalization of marijuana. St. Pierre, 40, drew a curious contrast between the friendly neighborhood bartender pouring a beer and "pushers" who sell marijuana. "There is no functional difference between a bartender and a drug dealer," he...