we have curved terrorist activities. but in order to completely crush the idea of a caliphate of a supremacy that allows them to kill and mame anyone that doesn't share their beliefs, should we at the final part of that bring back these fighters? >> i feel that we must find a way to hold these thousands of jihadist fighters accountable for the human rights crimes. i can understand european countries struggling with the burden of that. that's why perhaps an international court for terrorists is the answer. i feel that we would be very sad at this point to let all of these people go. we still have not captured the leadership of isis.