Favorite Audio Piece

I really don't listen to a lot of audio pieces, but when I was looking for one to listen to I stumbled upon "This American Life" on NPR. This piece was so intriguing. It is about two women who were switched at birth and only found out 40 years ago when one of the mothers wrote a letter to the other mother. The ironic and crazy thing about this is that the two families lived in the same town and had common friends. This piece is rather long but I still couldn't help but being hooked into the story. This is such an unusual topic and it was really interesting to hear about something like this.