Before they let you off the plane they make you sit there while guys in masks come through and check everyone's temperature.
When they paused and hovered over a couple up near the front, the rest of the plane flipped out, grabbing masks out of their luggage and murmuring nervously.
This ended up being a lark, and we all deplaned happily.
It got more interesting upon actually entering the Beijing airport.
Bombs and knives? No biggie. Just make sure you're not sick. Every checkpoint you pass through has infrared cameras that display your body heat on these big color monitors.
These dudes are not messing around.
Very cool, and scary as shit all at the same time.
Funny story...
Immediately after we landed, they closed the airport due to weather.
Supposedly they were routing flights to Mongolia.