“According to a criminal complaint, Mr Harroun is accused of crossing into Syria in January 2013 and fighting alongside members of Jabhat al-Nusra (the Nusra Front) against Mr Assad’s forces.”
see BBC News – US ex-soldier 'fought in Syria with terror group'.
Give the man a medal, I say. Who cares who was fighting alongside him? How many lives did he save by weakening Assad’s forces?