The document discusses the probability of being struck by lightning in the United States in one year. It states that about 100 people die from lightning strikes annually out of a US population of around 304 million people. Using the Poisson formula and probability calculations, it determines the chance of an individual being struck in a given year is about 0.00000033, or very small. It also calculates the low probability of exactly 50 people being struck by lightning in 2008. In the end, it concludes that the chances of being struck by lightning are very small and a person is pretty safe.