Technology, the Stealthy Tattletale

From New York Times

Initially, it seemed like an easy bank robbery. After stealing $7,000 from a PNC Bank in Evendale, Ohio, Kenneth Maples climbed into a white Ford pickup driven by his wife, Jewell, according to a police report. No dye pack exploded, no police sirens screamed in pursuit as the couple’s truck slipped into the anonymity of heavy traffic on Interstate 71 just after 10 a.m. on Sept. 14

But the suspects never had a chance. A Global Positioning System tracking device had been tucked inside the stolen cash, according to the report, allowing a small army of local police officers and F.B.I. agents to follow the signal from on-ramps and overpasses as it moved south into downtown Cincinnati.

Police put up a roadblock, closing five lanes of traffic. As hundreds of vehicles stopped, police converged on the suspects’ truck, sitting just five cars behind the police line.