How China is trying to maintain a zero-COVID policy while hosting the Winter Olympics

Summary: The Beijing Winter Olympics officially begin Friday. The Games are usually a celebration of sport and co-existence, but this year, the U.S. and some allied governments are boycotting diplomatically and accusing China of human rights abuses. Nick Schifrin reports on an Olympics in the era of COVID and how measures designed to keep athletes safe are also silencing Beijing's critics. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders