All contacts between Syrian Jews and foreigners are monitored. Mail is read and phone calls are tapped. Although there are Jewish elementary schools. they are supervised by Muslim headmasters and instruction in Hebrew. as a language. is strictly forbidden. Syrian Jews must receive approval for the Mukhabarat for all transactions involving the purchase and sale of property. And the property of Jews who leave Syria is given to the Palestinian Refugee Agency. Jews who wish to travel are subject to government interviews to explain why they want to travel abroad. They must post a huge monetary deposit and leave behind family members to ensure that they will return.