defended his country's actions saying -. rick: amy reporting from our roman bureau. meanwhile new concerns here at home amid the turmoil in the middle east and as isis is forced out of its stronghold. terrorist fighters are returning to their home countries raising complex challenges around the world. eric shawn has the story. >> the terrorist threat from returning foreign fighters is growing. governments are hard-pressed to stop it. that is the conclusion of the united nations report that says the in books of combat zones is larger, more global and more varied than ever before. >> the whole purpose of the states is to identify them in time to locate them in time and then to take care of them. all to protect them or to take care of them in protecting society. >> the report for the united nations security council counterterrorism committee