crankyusi

If I'm flying Continental to Guam (territory of USA), and I hold a USA passport and the first flight originates in mainland USA, is there any difference when arriving at Guam if I transit via Hawaii versus Japan? In other words, as a USA citizen, if my flights are wholly between USA airport (say LAX-HNL-GUM), I think I'm not restricted as to the items I bring. However, if I fly LAX-Japan on UA and then connect to a Continental NRT-GUM on Continental, am I then subjected to a different set of customs rules (ie, maximum $400 of merchandise) since I transited an international airport on the inbound flights?

Thanks to anyone that can help.