My son is a convicted felon for drugs. He did his time and is off probation. He has been clean and sober for almost 10 years. We know he can get a passport to go on a family vacation cruise but he thinks because he still owes $6k in back child support they won't let him leave the Country. Is this true? He is paying on it weekly to get it paid off but it won't be paid off before we want to go on the cruise.