Ex-U.S. soldier charged with helping terrorists in Syria . Justice Department veteran Harroun fought Washington 's government , affidavit says . Group he allegedly fought for is part of terror group , FBI says . Justice Department arrests Harroun at hotel near Washington .
Justice Department veteran Harroun fought Washington 's government , affidavit says . Group he allegedly fought for is part of terror group , FBI says . Justice Department arrests Harroun at hotel near Washington .