Amid the desolation of the war in Ukraine and its fallout, the West can allow itself one moment of celebration today to mark the release of several high-profile Russian political prisoners. In what can confidently be called the largest prisoner swap with Russia since the Cold War, the West has secured the release of the Wall Street Journal reporter Evan Gershkovich, Russian opposition politicians Vladimir Kara-Murza and Ilya Yashin and former US marine Paul Whelan, amongst others.