President Joe Biden's take on American sprinter Sha'Carri Richardson's one-month suspension for marijuana use was similar to hers and correct as far as it went. "Rules are rules," he said on Saturday, and "everybody knows what the rules are going in." Biden added that "whether that should remain the rule is a different issue." But as the collapse of pot prohibition continues apace in the United States, that issue is unavoidable. Now that 44 percent of Americans live in states that treat marijuana like alcohol, the lingering distinction between these two intoxicants makes less sense than ever before. Richardson, who tested positive for an inactive THC metabolite during U.S. Olympic Team Trials on June 19, said she used marijuana in Oregon, where voters approved legalization in 2014, after learning about her biological mother's death. Had she reacted by having a drink or two, that choice would have had no impact on her athletic career.