Thank you mrs 767 for your help! I am a US citizen. The state dept web site says we need proof of onward travel for both places, but I know sometimes real world practice is different. It sounds like what you are saying is that they are not too concerned about US Citizens visiting.

Is it your experience that I wouldn't even need a non-rev return ticket to HKG? That I can just purchase a one way ticket to HKG without any proof of onward travel?

BTW, I am not the Delta employee. I am the daughter, so I don't have a company ID, but I do have a Pass Travel Pocket Card to show I am a dependent. Thank you.