WNBA star Brittney Griner released from detention in Russia

Brittney Griner is finally free after a dramatic prisoner swap. The WNBA star had been held by Russia for most of this year on a minor drug offense, and was serving 9 years in a prison camp. But on Wednesday she was exchanged for Russian arms dealer Viktor Bout. Nick Schifrin reports and speaks with former DEA agent Robert Zachariasiewicz, who initiated the investigation on Bout.