Authorities in the U.S. and Europe have apparently thwarted plans for highly coordinated terrorist attacks in Britain, France and Germany that would have resembles the massacre in Mumbai, India, from a couple of years ago. Why are attacks using waves of gunmen in public places considered more sophisticated than attacks aimed at airplanes or trains? Why is the real story the explosive growth of Jihadist networks in the urban centers of Europe? How hard is it to blow up these sects and how can western nations improve cooperation in trying to stop future attacks? We ask Dr. Walid Phares, terrorism expert and senior fellow at the Foundation for the Defense of Democracies.