norml.orgCancer cure, or cause?When the bureaucrats over at the California Office of Environmental Health Hazard Assessment (OEHHA) classified marijuana smoke as a carcinogen last Friday, it predictably made headlines worldwide. But how much does the classification really mean, and should medical users and regular old potheads be concerned?The state of California is required by law to publish a list of chemicals "known to cause cancer" (the Proposition 65 list, which contains hundreds of chemica