Summary: The city's 148-year-old cable cars have been out-of-service for nearly a year due to the COVID-19 pandemic, and the San Francisco Municipal Transportation Agency has no timeline for when they'll return. Chronicle columnist Heather Knight explains why that is and why it's crucial to save these treasures. | Unlimited Chronicle access: sfchronicle.com/pod Learn more about your ad choices. Visit megaphone.fm/adchoices
