Tropos's mesh equipment deployed in New Orleans to watch the streets: Ruggedized mesh networking devices will deliver video surveillance of New Orleans streets at lower cost. Police officers will potentially be able to view surveillance while en route. In England, which lacks a per se Bill of Rights with blanket protections, CCT (closed circuit television) is common in most cities. It's a newer development in the U.S. On the other hand, we're being watched all the time. On the other hand, (irony intended through repetition), we're being watched all the time.
Correction: England has rights: Mike Moreton wrote in to note that the UK had adopted the European Declaration of Human Rights a few years ago which provides protections similar to and more extensive than the U.S. Bill of Rights. (Notably, privacy is enshrined with its own article.)