"But the Cuban missile crisis, in a larger sense, served much the same function that blinded and burned birds did for the American and Soviet observers of the first thermonuclear bomb tests a decade earlier. It persuaded everyone involved in it—with the possible exception of Castro, who claimed, even years afterward, to have been willing to die in a nuclear conflagration—that the weapons each side had developed during the Cold War posed a greater threat to both sides than the United States and the Soviet Union did to each other. This improbable series of events, universally regarded now as the closest the world came, during the second half of the 20th century, to a third world war, provided a glimpse of a future no one wanted: of a conflict projected beyond restraint, reason, and the likelihood of survival."