Precursor tech: Military omniscience and persistent surveillance

The US military is developing Camouflaged Long Endurance Nano-Sensors (CLENS) that would be an order of magnitude smaller than previous surveillance gear of its type — just 60 milimeters long, and 150 grams. Darpa wants the monitors to take up a 10,000th of the power of previous sensors. That would give the CLENS enough juice to keep watch over an area for up to 180 days. The military is trying to develop military omniscience, persistent surveillance and city wide networks of cameras