Electronic Ears Give Police a Boost in Fighting Crime

by Megan Reichgott USATODAY.com, 5 Jul 2005 Police installed video surveillance cameras around town and saw Chicago's murder rate fall to its lowest level in four decades. Now the cops hope to further cut crime by not only watching, but listening, too. The city is employing new technology that recognizes the sound of a gunshot within a two-block radius, pinpoints the source, turns a surveillance camera toward the shooter and places a 911 call. Read more