Video: How airbags work

Normally, something blowing up in your face is bad. But in the event of a vehicle accident, and in conjunction with a seatbelt, one particular explosion could very well save your life. It's the chemical reaction that inflates ...

Tougher US rules needed on autonomous cars: advocate

Accidents involving autonomous cars could slow the advance of the technology and demonstrate the need for tougher federal standards, a leading highway safety advocate said Thursday.

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