The content originally appeared on: CNN Kunming, China (CNN)Beijing is partially locking down to control a Covid outbreak that could completely shutter the Chinese capital. But just as the government is tightening controls in the city - testing 21 million residents, shutting schools and some shopping malls - I'm trying to get in. Flights from Tokyo to Beijing this week were impossible to find - the closest available flight was to Kunming, southern Yunnan province, around 1,600 miles (2,600 kilometers) […]