What happens when the world’s two greatest nuclear powers stop talking? Kirill Dmitriev, Special Envoy of the President of Russia for Investment and Economic Cooperation, tells Lara Logan that the Biden administration didn’t just strain relations with Moscow — it destroyed all dialogue. He warns that silence between nuclear nations breeds mistrust, miscalculation, and the risk of global catastrophe. President Trump’s team took a different path. Dmitriev says they sent Steve Witkoff to meet Putin