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

Read MoreThe 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 exchangeThe 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