Slickrick, I think having flown over 150 long haul int'l segments with Delta in BizE that I know the difference between int'l and domestic, O/D vs. connecting and so on.
Look people, it is this simple, two years ago DL said that for shart haul domestic there would no longer be Priority tags, IMHO at many stations if you are PM (not F, but PM) they will in fact still throw the sticker into the tag. For solely domestic hops this is hit or miss as to whether it works. Internationally these tags apply and as I stated above I have noticed a quite big improvement in my bags coming out early over the last two years. Its that simple.