Originally Posted by
jiejie
Usually in addition to the standard document check and security screening that all passengers go through at Chinese airports, there will be an additional manual secondary check of all carry-on bags and often of the passenger (hand wands, pats), somewhere near the gate.
I forgot but yes there was the wand treatment too. So this is standard now you are saying on all US carrier outbound flights regardless of destination. If I usually am on JAL to NRT before heading to the US a few days later of off to other Asian location before trip concludes and returning to the US so I may not have seen it.