Playing around with nuclear weapons in videos is fun. There’s a visceral joy in blowing things up, and a horrifying fascination with things like fireballs, shockwaves, and radiation. And while it does help put our destructive power in perspective, it’s not the best way of understanding the real impact of a nuclear explosion.

This isn’t about city stacks of TNT, or about how bright an explosion is. Nuclear weapons are about you. So we’ve partnered with the Red Cross and Red Crescent movement to explore what would really happen if a nuclear weapon were detonated in a major city today. Not nuclear war, just one explosion.

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