revoke the passports of all US Citizens that have travelled to Iran / Iraq that are potential members of IS/ISIS.

It is already clear that the Islamic State is an enemy of the United States of America and a threat to our way of life. We need to immediately revoke the passports (and possibly even citizenship) of any and all Americans who have traveled to Iran or Iraq to support the cause of ISIS / The Islamic State. If it is even suspected that they have helped the IS cause in any way they should be permanently denied access to the United States of America. We have to show these people we aren't messing around.