A closer look
That cheerful blond mascot giving you a thumbs-up isn't actually offering encouragement while you wander the radioactive wasteland. According to old nuclear survival doctrine, if you see a mushroom cloud in the distance, you are supposed to hold your arm out straight and stick up your thumb. If the cloud is smaller than your thumb, you are supposedly at a safe distance from the radiation. If it's bigger, you're already dead. Suddenly, his huge smile looks a lot more psychotic.






