It sounds like it might be a dangerous time to LARP about and plan terrorist acts. That could be very problematic for those who enjoy that as a recreational hobby. But in some ways there's a precedent for it with flying. Lots of people used to love to LARP about taking a bomb on a plane and that recreational activity has been significantly curtailed. Maybe we're heading for a world where it's no longer safe to plan the kidnapping of state or national government officials and then practice the steps necessary to carry it out, and where we can no longer joke about a bomb look-alike device that we want to take on airplanes.