industries in shanghai, authorizing them to resume production under a so-called closed loop management system. that s the system they used during the beijing winter olympics. the problem right now is that local officials are seeing little incentive to do this, given the far greater potential risks if new cases emerge within their jurisdictions. rosemary? all right, steven jiang joining us live from beijing, thanks. south korea lift most of its covid-19 restrictions starting today. curfews for businesses, caps on private gatherings and rallies, and restrictions on religious activities have ended after more than two years. indoor and outdoor mask wearing will remain mandatory, but officials say other restrictions will be lifted if cases continue to decrease and medical system capabilities remain stable. here in the united states, a group of business owners and residents are suing the city of philadelphia to overturn its renewed indoor mask mandate