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Biometric trackers, cellphone location databases and drones are among the surveillance technologies agents are using in their immigration enforcement campaign.

As a Navy mathematician in the 1950s and beyond, she played an unheralded but foundational role in making possible the global satellite-based mapping system.

Professional mountain bike racing is a rather bizarre sport. At the highest level, times between podiums will be less than a second, and countless hours of training and engineering go into those ...

When her preteen son aged out of his after-school program, Olga Ramos suddenly found herself in new parenting territory. Her son was ready to walk home by himself and linger after school with clubs, ...

Add Yahoo as a preferred source to see more of our stories on Google. The Massachusetts State Police spends nearly $70,000 a month on a sophisticated GPS tracking system designed to enhance ...

The Massachusetts State Police spends nearly $70,000 a month on a sophisticated GPS tracking system designed to enhance accountability and public safety. But 25 Investigates discovered a loophole: ...

Vatn Systems has released INStinct, an inertial navigation system (INS) designed to provide GPS-free navigation for maritime operations. The defense technology company, which manufactures autonomous ...