"I don't know if humanity ever collectively learns lessons. But if we do, i often think it comes with the equivalent of us ina touching history's hot stove," he says. "Is this the atomic age beginning nightmarishly, so that it doesn't have to end that way some day? So that we don't have ... our very best technological capabilities, and those being sticks and stones?" 'The fact that there was a holocost saved a lot of lives,' writes David Frum.