Russia freed WNBA star Brittney Griner on Thursday in a dramatic prisoner exchange, as the U.S. released notorious Russian arms dealer Viktor Bout but failed to win freedom for another American, Paul Whelan, who has been jailed for nearly four years. The swap, at a time of heightened tensions over Ukraine, achieved a top goal for President Joe Biden but carried a heavy price. “She’s safe, she’s on a plane, she’s on her way home," Biden said from the White House, where he was accompanied by Griner's wife, Cherelle, and administration officials. The deal, the second such exchange in eight months with Russia, procured the release of the most prominent American detained abroad. Griner is a two-time Olympic gold medalist whose monthlong imprisonment on drug charges brought unprecedented attention to the population of wrongful detainees.