Touchless ID is now available at 40 US airports, including Miami and Boston. Here's how to opt in to the special security ...

Forget about basic stand-on devices that measure weight and basic body composition stats; this advanced foot-to-hand smart scale can do that and so much more.

Nebraska deputies tracked Seth Ferranti with license plate readers before a marijuana stop, raising Fourth Amendment concerns.

Cities around the country are debating whether to keep their automatic license plate readers. Concerns about privacy and federal immigration agents can access local data are driving these debates.