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Morning Edition Returns: Walk the Walk

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Morning Edition Returns: Walk the Walk

Morning Edition Returns: Walk the Walk

Morning Edition Returns: Walk the Walk

  • Download
  • <iframe src="https://www.npr.org/player/embed/1269291/1269292" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

The Pentagon is developing a device that can identify people by the way they walk, which is said to be as unique as a signature.