Ksenia Karelina, a U.S.-Russian dual citizen and former ballet dancer, was released from a Russian prison in a swap for Arthur Petrov, a German-Russian accused of smuggling microelectronics. Karelina was convicted of treason after donating $51.80 to a charity aiding Ukraine. The exchange took place in Abu Dhabi, with U.S. Secretary of State Marco Rubio and CIA Director John Ratcliffe confirming her return. Karelina's arrest reflected heightened tensions between the U.S. and Russia over the Ukraine conflict, making her release a notable diplomatic achievement amidst ongoing negotiations for improving bilateral relations.