I love nanobots for military applications. Imagine 100,000 of those swarming over multiple divisions of enemy soldiers, each one loaded with about 4 oz of composition B, each one communicating with every other one simultaneously assigning targets, simultaneously descending upon their targets, simultaneously exploding when they get about 3 feet away from their targets. ohohoho fun fun fun.
Unfortunately the Obama regime is more likely to release them on a neighborhood full of political oppenents than a foreign enemy. Leftists always save the real horrors for their own people.
Imagine a swarm of nanobots the size of flies, each one having a little stinger containing a drop of some powerful neurotoxin or hallucinogenic, perhaps controlled by a pigeon-sized "mother-ship".