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A new device promises to tell police when a driver has been sending messages while behind the wheel, but is it legal? Larry Greenemeier reports.
Learn more about your ad choices. Visit megaphone.fm/adchoices
By Scientific American4.2
599599 ratings
A new device promises to tell police when a driver has been sending messages while behind the wheel, but is it legal? Larry Greenemeier reports.
Learn more about your ad choices. Visit megaphone.fm/adchoices

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