![TED Talks Daily show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/757/small/tedtalks-audio.png)
Summary: One day, Ed Gavagan was sitting on the subway, watching two young med students practicing their knots. And a powerful memory washed over him -- of one shocking moment that changed his life forever. An unforgettable story of crime, skill and gratitude.