Nearly 50 years ago, at the height of the Cold War, former U.S. ambassador to NATO Harlan Cleveland wrote a book called "NATO: The Transatlantic Bargain."
Ivo Daalder, former U.S. ambassador to NATO, explains why you should be concerned about Brexit. He speaks with Bloomberg's David Gura and Vonnie Quinn on "Bloomberg Markets."
Recently, I've been rereading "The Rise and Fall of the Third Reich." In this political season, William L. Shirer's mammoth history of Hitler's Germany seems a useful guide to how a skilled demagogue can seize and destroy a great nation.