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These kinds of building techniques may not have saved all those caught in the path of the monster Moore tornado, but hundreds of twisters hit the United States every year, and smart building strategies and tech can reduce the damage from the great many of those. Ernst Kiesling, professor of civil engineering at Texas Tech University, says there's not much you could do if a tornado scoring a 5 on the EF (enhanced Fujita) scale bears down on your home (and in the case of tornadoes, with their smaller path of destruction, many people would rather gamble with fate than invest in armoring their homes with costly technologies).