There was a time when bells in town squares warned citizens of impending danger. Today, the bells ring again in the form of studies and media reports with warnings about urban problems that plague modern cities and resist solutions. Meanwhile, increasing numbers of people move to cities in pursuit of a higher quality of life. This is the story of cities: Citizens with big expectations versus the endurance of big city problems. It is a still-unfolding story with numerous villains: social inequality, traffic congestion, pollution, crime, unemployment, lack of affordable housing, aging infrastructure, public service shortfalls.
Law enforcement has been using technology to solve crimes for more than a century. Using technology to prevent crimes, however, is a relatively new idea. The movie Minority Report famously depicts a futuristic society in which police officers arrest people before they commit crimes. It’s a deeply disturbing movie with a not-too-subtle message about the danger of relying too heavily on technology.
Nevertheless, a small industry has emerged around the practice of predictive policing. New York, Chicago, Los Angeles, New Orleans and other cities have experimented with predictive policing programs. The experiments have been inconclusive and controversial.