Fred Kaplan Talks "The Wizards of Armageddon."

Journalist Fred Kaplan's new book explores the evolution of the United States' nuclear arms policies through the lens of rivalries between the Air Force and Navy and the increasingly theoretical analyses made by political figures and think tanks.

In The Bomb, journalist Fred Kaplan reveals how U.S. presidents, their advisers and generals have thought about, planned for — and sometimes narrowly avoided — nuclear war.

New Yorker writer Evan Osnos visited North Korea in August to understand what they really mean when they talk about nuclear war. He found that nuclear weapons are an essential part of their society.