Identifying a coin from orbit is almost certainly physically impossible due to the diffraction limit[0] and the maximum payload diameter of existing space launc

Identifying a coin from orbit is almost certainly physically impossible due to the diffraction limit[0] and the maximum payload diameter of existing space launch vehicles. As for the PRISM replacement, it's fair to assume that the NSA simply buys whatever social contact graphs it wants from Facebook and commercial data brokers. [0] https://en.wikipedia.org/wiki/Diffraction-limited_system https://en.wikipedia.org/wiki/Diffraction-limited_system