Key Ideas - Understanding Content 1. 1:35 What evider[ce does John Green use to argue that the Cold War was a "clash of civilizations"? 2. 2:40 Why does John Green argue that the Cold War actually started during World War 11? 3. 5:05 What was the Marshall Plan? 4. 6:00 What is M.A.D.? 5. 7:45 What are some examples John Green gives of Soviets and Americans fighting each other indirectly? 6. 8:30 What were the "three worlds"? 7. 10:50 What were glasnost and perestroika?