John Dickerson talks with author David E. Sanger about his new book, New Cold Wars. They discuss how Russia and China came to reach their new levels of power, the role the Middle East and Obama Administration played in all of this, and more. Tweet us your questions @SlateGabfest or email us at gabfest@slate.com. (Messages could be quoted by name unless the writer stipulates otherwise.) Podcast production by Cheyna Roth. Learn more about your ad choices. Visit megaphone.fm/adchoices