Or heck, name him an "enemy combatant" and just detain him indefinitely in some Polish blacksite. People will forget his name in time.
The Supreme Court has already struck down, on constitutional grounds, application of the UCMJ to military contractors deployed with the military on foreign military missions, under express language in the UCMJ applying it to them (the motivation for the Military Extraterritorial Jurisdiction Act, which applied US federal civilian criminal law that otherwise applies within the US territorial and special maritime jurisdiction to them.)
So I don't see that argument surviving the inevitable habeas petition.
> Or heck, name him an "enemy combatant" and just detain him indefinitely in some Polish blacksite. People will forget his name in time.
Not in time to mitigate the short term political consequences of being seen disappearing him.