Send us Fan Mail What does the word twister make you think of? A fun game with colorful dots and tangled up bodies, an action film, or a deadly windstorm? My maternal grandmother was raised on Kansas farm, and the blood would drain from her face at the mere mention of the word. As a child she had spent many times down in the storm cellar scared to death. Tornadoes kill 20-100 people a year in the US. What causes this persistent and deadly weather? We'll look at some information from Nat...