jones have a gps capability and there is a way there for to preprogram a way point into the drone so that it lands, basically crashes at a certain point and becomes a kamikaze. >> cnn has learned that u.s. security officials are scrambling to keep up with this lightest threat of swarms of drones. a large open venue where there are a lot of people gathered. how vulnerable to swarming drones? >> a bunch of people in a wide open space, of course they're vulnerable. we already know that. we've seen attacks, new york city and other places. and mostly in vehicles, right? now what we've done is tried to protect ourselves on the ground. this is something new. >> reporter: high profile targets like the upcoming super bowl could potentially be threatened by swarms of drones. a key question tonight, how can security teams defend against them? >> one is you find the people and stop them before they do