china for the covid games. our journey starts weeks before. i'm here in tokyo. it's 14 days before the games. but i already have to download this olympic health app, start tracking my health every day, and upload my vaccine certificate. i'm getting some deja vu since we had to use one for the tokyo games. i'm limiting physical interaction as much as possible. 96 hours before departure, a test. i upload my information to get this green qr code. >> here we go. we're taking off. just landed in beijing. it's totally surreal. i haven't been back here since i moved a year and a half ago. first thing i saw walking off the airplane is a sea of hazmat suits. it feels like going into a