The Face Scan Arrives - NYTimes.com
A person in public may have no reasonable expectation of privacy at any given moment, but he certainly has a reasonable expectation that the totality of his movements will not be effortlessly tracked and analyzed by law enforcement without probable cause. Such tracking, as the federal appellate judge Douglas H. Ginsburg once ruled, impermissibly “reveals an intimate picture of the subject’s life that he expects no one to have — short perhaps of his wife.”
Before the advent of these new technologies, time and effort created effective barriers to surveillance abuse. But those barriers are now being removed. They must be rebuilt in the law.