April 14, 2012 Updated January 08, 2016 20120414_atc_04.mp3?orgId=1&topicId=1091&d=210&story=150639990&ft=nprml&f=150639990 Listen • 3:30 20120414_atc_04.mp3?orgId=1&topicId=1091&d=210&story=150639990&ft=nprml&f=150639990 Copyright 2016 NPR. To see more, visit http://www.npr.org/ .