"Largely". "For the most part".
It does not matter how small in scale it might be, if this money from American citizens finds it's way into the hands of one doctor who treats an enemy combatant and this combatant comes back to fight again against American troops, than this group, Code Pink, no matter how you try to explain it, has committed the crime of TREASON.
You know what is scary? They description you gave of "treason" on post 237 kind of describes the doctors treating the prisoners on Gitmo that get released back to say Afghanistan and then go back to their gang of terrorists and kill the American troops there.
I truly think, though, in the case of Code Pink, they should at least be brought up on charges of treason. I'm sure the ACLU would help them---anyway you look at it, the way our taxes are used, someone helping the enemy will be funded in some way by you and me!!!