The Israelis are in the process of joining the US in the development of nanobots (UAVs, etc.) that can sense and act at a hyper-local level. We can expect to see a plethora of weapons in this area over the next decade (as Chirol guessed, I love this type of tech).Here's the LEO view: although you might not see it yet, over the long run this type of technology spells the end of the massive and traditional standing army. You don't need to replicate bodies when you can replicate nanobots at a infinitesimal fraction of the cost. Of course, an army/police force of nano-bots remotely controlled via mesh swarming might, in time, only require a small cadre to operate. Co-opt that cadre and you have a big problem for any society that employs it.