US reporter Evan Gershkovich had been sentenced to 16 years in prison in Russia on espionage charges. Now, he is free. He may well be the best-known among those freed in Thursday’s historic prisoner swap with Russia.

The biggest prisoner exchange between Russia and the West since the Cold War has taken place. Twenty-six people were exchanged, 24 of them prisoners, along with two minors.
Five of them come from Ru…