that is, the first versions of them were completely remotely rated. now we have versions that can take off and land on their own, fly mission points on their own. and the third change is the funds we use them for. initially it was just for surveillance and now for strikes and you have prototypes that are used for caring cargo, medical support, you name it. and, of course, with the increasing function at, the users are growing. initially it was the u.s. only technology and now there are 45 other nations out there that are building, buying and using military robots. so this is emerging and global technology. >>shepard: soon they believe they can launch them on-site with a terror target of some kind in their eye sight from their iphone which is, way out there. and there is a down side. when you don't have eyes and ears on the ground you can miss