Scott talks to Hans Kristensen about nuclear proliferation. Ever since the U.S. government backed the coup in Ukraine in 2014, he says, we've been flying bombers near Russia and the Baltic states in what are ostensibly "training exercises," but which in reality are meant to intimidate America's enemies. Kristensen explains that even though these bombers don't have nuclear capabilities, they are a demonstration of U.S. reach into Eastern Europe. Of course the obvious danger with this kind of saber-rattling is that actual war breaks out—and nuclear war between America and Russia is something...