With at least 30 million surveillance cameras watching Americans every day, one aspect of the world of George Orwell’s dystopian novel 1984 has already come to pass, and more is on the way. In the next two years, for example, the FBI plans to test a nationwide database for searching iris scans to more quickly identify persons “of interest” to the government. The human iris, which is the doughnut-shaped, colored part of the eye that surrounds the black pupil, exhibits a pattern unique to each individual, just as fingerprints do, and iris recognition has been a staple of science fiction stories and films for years.
