In the not too distant future you may be able to buy an inexpensive video camera with the size and aerodynamic characteristics of a mosquito. Even earlier, we will see–are already seeing–the proliferation of cameras on lamp posts designed to deter crime. Ultimately this could lead to a society where nothing is private. Science fiction writer David Brin has argued that the best solution available will be not privacy but universal transparency–a world where everyone can watch everyone else. The police are watching you–but someone is watching them.