A team of British intelligence analysts has drawn up a chilling scenario in which terrorists launch a swarm of small drones in an attack on a major sporting event like the Super Bowl, unleashing multiple explosive devices on the crowd in the stadium. “If we do not act to prevent it, it is only a matter of time,” Chris Abbott, the executive director of a think tank called Open Briefing, told The Daily Beast in an exclusive interview.

Abbott’s group, which calls itself “the first civil society intelligence agency,” includes former military specialists and intelligence agency operatives. They have been tracking the development of drones for several years.  What they now see is a cheap and easily accessible technology that is particularly suited to the limited resources and ability of the small, widely dispersed terrorist sleeper cells that are known to exist in Western Europe and the United States—or lone wolves indoctrinated by ISIS or al Qaeda, like the San Bernardino attackers. READ MORE