You probably have never heard of 2,5-dimethoxy-4-iodoamphetamine) (DOI), let alone heard that it is commonly abused. Yet the Drug Enforcement Administration (DEA) wants to ban the synthetic psychedelic, a promising research chemical that has figured in more than 900 published studies, by placing it in Schedule I of the Controlled Substances Act, a category supposedly reserved for drugs with a high abuse potential and no recognized medical applications—drugs so dangerous that they cannot be used safely, even under a doctor’s supervision. Students for Sensible Drug Policy (SSDP), which defeated …