Sunday on PBS News Weekend, the death toll rises again in Los Angeles as firefighters scramble to contain the flames and schools remain shut down. Winter illnesses return with a vengeance as cases of RSV, COVID and the flu surge across the country. Then, a look at the health struggles of aging former drug users. Plus, what scientists hope to learn from ancient ice found deep beneath Antarctica. PBS News is supported by - https://www.pbs.org/newshour/about/funders