Investigators in Nancy Guthrie's disappearance are using a device called a "signal sniffer" to try to detect transmissions ...

Today's pacemakers are about the size of a small matchbox, and future models are expected to shrink even further, becoming smaller than a grain of rice. Now, these devices, depending on the model, can ...

Data from Nancy Guthrie's pacemaker has helped shed light on the events leading up to her kidnapping, but there are significant limits in how much data the devices can collect. Most importantly for ...

Sixty-seven years ago on Halloween, a rolling power outage wreaked havoc across the Twin Cities and at the University of Minnesota hospital, where cardiac patients were relying on electrical ...