 Correspondent Karen Shamus reports on detained U.S. journalist Evan Gershkovich and what's going on behind the scenes to try and get him released. A U.S. journalist has appeared at a second trial in Russia for espionage charges, while talks of a prisoner exchange between Russia and the U.S. go on behind the scenes. Evan Gershkovich is accused of gathering information for the U.S. while on a reporting trip in Yekaterinburg, where he was arrested.