Hidden GPS devices to track suspects raise legal concerns
By MICHAEL BALSAMO For months, police trying to solve a Long Island robbery spree had little more to go on than grainy surveillance footage of a man in a hoodie…
Global positioning systems
Air traffic control modernization hits turbulence
By JOAN LOWY An Alaska Airlines plane takes off Monday, Oct. 28, 2013, from Seattle-Tacoma International Airport in Seattle. The modernization of the U.S. air traffic control system, one of…