The whole world is held together by nukes. Hiroshima & Nagasaki were outliers though. If we do use them, it has long been a prediction that 'intelligent' lifefo

The whole world is held together by nukes. Hiroshima & Nagasaki were outliers though. If we do use them, it has long been a prediction that 'intelligent' lifeforms eventually wipe themselves out, rather than being star-faring and preserving the species on other planets (Mars as Plan B). This is a test of how enlightened we are as a species.