In what’s being called the biggest health care strike in U.S. history, more than 75,000 staffers at not-for-profit provider Kaiser Permanente walked off the job across the country after contract talks stalled. Workers include pharmacists, optometrists, vocational nurses and lab technicians. NBC’s Tom Costello reports for TODAY. » Subscribe to TODAY: on.today.com/SubscribeToTODAY » Watch the latest from TODAY: bit.ly/LatestTODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: on.today.com/ReadTODAY Find TODAY on Facebook: on.today.com/LikeTODAY Follow TODAY on Twitter: on.today.com/FollowTODAY Follow TODAY on Instagr...