Associated Press: Powerful dust storms that carry whirling dirt and debris are common occurrences across parts of Arizona and the arid Southwest during the spring and summer months. A day after a massive dust storm swept across an Arizona highway, killing three people in a 19-vehicle pileup, experts say the state isn't alone, across the country or the world, in its susceptibility to such a weather phenomenon.
Africa's Sahara desert and parts of the Middle East are often hit with powerful dust storms, also called...