katsurin, this is so important, and please come back, we want to hear more about your conversations with your father next week and week after that. >> i understand, lawrence, that -- to talk to our relatives and they have to know the truth. but i have something to say not only to my dad but also to the people of the world. ukraine resists the modern adolf hitler who now openly threatens the world with a nuclear bomb. russia is huge and they can do war for ages and we cannot resist for ages. so, they will kill us and they will continue. so, nato, close the sky. save people and their democracy and the future of the world, please. >> your message is getting through, misha katsurin, thank you very much for joining us tonight, thank you. coming up, professor tim snyder