The photo of returning prisoners in an American plane, all grinning from ear to ear, says it all: the joy, the relief and the success of an incredibly complicated mission.
The freeing of Wall Street Journal reporter Evan Gershkovich, Radio Free Europe journalist Alsu Kurmasheva, former US Marine Paul Whelan and a host of others is the biggest prisoner exchange since the end of the Cold War.
In all, 26 people from seven different countries were freed in a mindbogglingly complex agreement that took years to negotiate. They included 16 imprisoned in Russia: the three Americans, a host of Russian political prisoners, and a 19-year-old Russian-German national jailed for taking photographs of a Russian military base.
