San Francisco January 20, 2020 11:26 am Caltrain's Annual Celebration Train Runs in Honor of MLK Day Caltrain on Monday ran its annual Celebration Train from San Jose to San Francisco to honor Dr. Martin Luther King Jr. Day. US & World Videos 5:57 San Francisco trying to ban cancer-causing chemicals in firefighter gear, but are alternatives safe? 1:53 5 sports icons inducted into the Bay Area Sports Hall of Fame 3:16 San Francisco mom highlights student safety on Muni after alleged anti-Asian attack 0:24 Murder suspect arrested following neighborhood lockdown in Antioch 2:50 Israel-Hamas ceasefire negotiations underway