Things to know about the largest US-Russia prisoner swap in post-Soviet history

The U.S. and Russia completed on Thursday their largest prisoner swap in post-Soviet history, a deal involving 24 people, many months of negotiations and concessions from other European countries who released individuals in their custody as part of the exchange. The deal is unlikely to signal a broader breakthrough in U.S.-Russia relations, but it's striking nonetheless. Several Americans were left behind, and though there's an imbalance in wrongfully detained Americans being traded for criminals convicted in Western courts, President Joe Biden says deals like this require hard choices.