These terrorists are the modern version of Kamikaze. I don’t know what can be reasonably done to defend ourselves from them and still give us a reasonable level of freedom. I believe it may be time to avoid going anyplace that requires you to be stranded in a crowd outside of the controlled space of a venue. Any time we leave sporting events and gather to board light rail or buses we are vulnerable to the new crowd based Kamikaze. I know I personally will never again be outside on the Vegas strip on New Years eve.