When Muhammad comes marching home again ... What should be done about ISIS fighters returning to U.S.? Nothing. Thousands of American Jews regularly do service in Israel's military Nothing, we are not officially "at war" with ISIS Nothing. Unless they've broken a law, they have the right to come and go like any other citizen The FBI should continue to keep them under surveillance Take their citizenship and fill up Gitmo with them Publish their names so we can protect ourselves Other View Results Loading ...