Detailed text transcripts for TV channel - MSNBC - 20190313:06:33:00
Challenge. with us tonight is ambassador william burns, former u.s. ambassador to russia from '05 to '08. he served as a diplomat for over three decades, working under phi presidents. holds the highest rank as a career ambassador. he is currently president of the carnegie endowment for international peace. he also happens to be the author of a new book, "the back channel: a memoir of american diplomacy and a case for its renewal." thanks for being was. >> thanks so much. it's great to be with you. >> for those who didn't pay attention to the cuban missile crisis, begin with the definition. tra...