How drugs ruined San Francisco

San Francisco is a rich and beautiful city that has been ravaged by drugs and homelessness. Fentanyl in particular has been disastrous for the area. This week on Nexus we talk to Tom Wolf a father of two who almost lost everything because of drug addiction, Ben Westhoff an investigative journalist who went undercover in a Chinese fentanyl factory, and Tom Wong a Republican businessman who grew up in San Francisco and ask them what has brought San Francisco to brink of disaster.