On San Francisco

San Franciscans have a lot of questions about the blatant, open-air injection drug use occurring on our sidewalks. Dr. Phillip Coffin, director of substance use research for the San Francisco Department of Public Health, has answers. In an interview with Chronicle columnist Heather Knight, Coffin explains why the opioid epidemic has gotten so bad, the logic behind the city’s needle exchange program and what safe injection sites are really like.  Learn more about your ad choices. Visit megaphone.fm/adchoices