October 4, 2023 5:48 pm Tens of thousands of Kaiser Permanente workers go on strike The largest health care worker strike in U.S. history began Wednesday with tens of thousands of Kaiser Permanente workers hitting the picket lines. Ian Cull reports. US & World Videos 2:37 Watch: When breast cancer treatment stops working, what's next? 2:43 Watch: Redfin expert discusses millennials and mortgages in Bay Area 2:11 Solar power is on the rise. Is it right for you? 1:18 Partnership among states, organizations creates Youth Mental Health Corps 1:43 Proposed Chick-Fil-A in Walnut Creek has some residents concerned about traffic impact