Knee Defender device sparks row as airline seats shrink comfort

      |A device known as the "Knee Defender" was at the center of a dispute on a United Airlines flight over the weekend. The product is attached to the back of an airline seat, preventing the person in front of you from reclining. As seats on flights continue to shrink, the battle for space in the sky is becoming more acrimonious by the day. Jeff Pegues reports

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