"As the Harvard University strategist Graham Allison summed it up: "Historically, there has always been a gap between people's individual anger and what they could do with their anger. But thanks to modern technology, and the willingness of people to commit suicide, really angry individuals can now kill millions of people if they can get the right materials." And that is becoming steadily easier with the globalization of flows and the rise of 3-D printing, by which you can build almost anything in your basement, if it can fit. In"