The difference is in the degree! I don't think the Chinese could or would decrypt all foreigners traffic (and I did mean TLS but use the more well-known SSL nam

The difference is in the degree! I don't think the Chinese could or would decrypt all foreigners traffic (and I did mean TLS but use the more well-known SSL name) but if the question is "As someone with a trip to Beijing on the horizon, aside from using a VPN, are there any other best practices to keep data secure while traveling there?", the answer is very clearly don't connect to the internet. I don't know the person who asked the question, whether he is a realistic government target or just some normal person but there are enough reports of cache poisoning, VPN control/blocking and Chinese hijinks to know that if you are worried about them, don't connect. Mind you, the same fear applies to the US and UK as well.