In the summer of 1963, JFK arrived in a divided Germany with the recent construction of the new Berlin Wall nearly two years earlier. President John F. Kennedy spent his entire administration in a "twilight struggle" with the Soviet Union including averting possible total war during the Cuban Missile Crisis in 1962. Historian Tim Naftali takes us from JFK's Presidential Campaign to his final foreign trip to West Berlin. The Atlantic staff writer and Cold War expert Tom Nichols explains how JFK's Cold War legacy has continued on through today.