Not really. He was not on the border. As he would not have been an enemy combatant then he should have been extradited to US proper. Same with the guy from Zambia.
If they are not on the battleground then they cannot be enemy combatants surely?
I can't give you an intelligent discussion about Zambia, since I'm fuzzy on when and where they were caught. I joined in from the point of view that the four were caught by US forces, with a smoking gun in hand or in some way encouraging attacks on our soldiers. An interesting case, too, is Richard the Shoebomber Reid, who merely tried to blow up an airplane loaded with passengers. He's British, too, I believe. But he's languishing in a US jail, right?
The trouble with Pakistan and that area of the world is that hit and run attacks went on, do go on to this day. Our special forces are surely still in the area, with Pakistan's nod and wink. Something or somebody lit up these guys with a red laser button...they were definitely in the wrong place at the wrong time. It will be interesting to see what they get up to now. (Zambia is totally off my radar at the moment.)