February 29, 2012 Updated January 08, 2016 20120226_wesun_04.mp3?orgId=1&topicId=1126&d=247&story=147442469&ft=nprml&f=147442469 Listen • 4:07 20120226_wesun_04.mp3?orgId=1&topicId=1126&d=247&story=147442469&ft=nprml&f=147442469 Copyright 2016 NPR. To see more, visit http://www.npr.org/.