Why not go to Bais-Din for a heter to get the local courts to put him away on other charges for a long time. He is a mooser and Bais Din can act. By traveling to Iran and doing what he did, he probably got money from terrorists and worked with them. I am sure if they really dug it up, many very illegal acts can be found to put him away for a long time. His family would not have to pay the price for his shtick.
If this is left unchecked, how long before others try this in other parts in Europe and US. Why not try stopping Jews from doing Briss with this mooser telling the governments what they want to hear? A mooser is dangerous.