" If you think atomic explosions in Asia wouldn't affect Americans, consider this. A study published in Scientific American in 2010 looked at the probable impact of a "small" nuclear war, one in which India and Pakistan each dropped fifty atomic bombs. The scientists concluded that the explosions would ignite massive firestorms, sending enormous amounts of dust and smoke into the atmosphere. This would block some of the sun's light from reaching the earth, making the planet colder and darker - for about ten years. Farming would collapse, and people all over the globe would starve to death. And that's if only half of one percent of all the atomic bombs on earth were used.

In the end, this is a difficult story to sum up. The making of the atomic bomb is one of history's most amazing examples of teamwork and genius and poise under pressure. But it's also the story of how humans created a weapon capable of wiping our species off the planet. It's a story with no end in sight.

And, like it or not, you're in it. "

― Steve Sheinkin , Bomb: The Race to Build—and Steal—the World's Most Dangerous Weapon