The societal scourge of addiction is a case of good evolution gone bad in modern contexts, but scientists are closing in on new biomedical interventions. A group of addiction researchers recommended that the problem of substance use disorders should be approached as a medical, not a legal, issue. In this vein, New York City's police department has begun to equip its officers with naloxone, a medication that can be used to save lives in the event of a heroin overdose. Results are discussed in a subsequent report.