Four top ISIS leaders join the list of most wanted terrorist by the United States, with a 4 million dollars reward on each. Abd al-Rahman Mustafa al-Qaduli, Abu Mohammed al-Adnani, Tarkhan Tayumurazovich Batirashvili and Tariq Bin-al-Tahar Bin al Falih al-Awni al-Harzi. These are the names of the top ISIS leaders wanted by the United States...