Originally Posted by
moondog
Several years ago, the US had a blanket ban on liquids on incoming flights. Many airports in Asia continue to enforce this policy, albeit sporadically.
One of the requirements was delivering the duty free goods to the boarding gates for pick up, and didn't seem to affect U.S. airlines only. Some airports, such as HKG didn't (and still don't) have this back in 2007/8. FWIW, it also resulted in duty free not being available on QF flights to Australia (presumably Australian rules) and CX flights that first flew to YVR before continuing on to JFK.