You strike me as a smart guy who is well informed... but I have trouble believing that you have true facts that the State Department, the US Army, FBI among others, don't have. The Geneva Convention status came after a sixteen month interdepartmental investigation...
Your suggestion is essentially criminal... our military isn't going to line people up and execute thousands of non-combatants. There are only a few regimes willing to execute non-combatants in the thousands and the Iranian government is on that list.
I'm curious, based on your suggestion about what to do with the MEK, what sort of gruesome torture do you have in mind for the mullahs? Is it the same suggestion for them too?
Shoot the traitors!
Both Mullahs & their mercenary forces MEK