Brittney Griner, the WNBA star who was held for months in Russian prisons on drug charges, was released Thursday in a one-for-one prisoner swap for international arms dealer Viktor Bout, according to a U.S. official. The one-for-one exchange agreement negotiated with Moscow in recent weeks was given final approval by President Biden within just the last week, according to sources familiar with the deal. The swap, first reported by CBS News, took place on Thursday in the United Arab Emirates.