Mother Jones: The Midwest is no stranger to devastating floods. Last summer, the region was inundated with two month's worth of rainfall in just one week, submerging farms and killing crops. Torrential downpours following a drought in Illinois in 2013 led to flooding that cost $1 billion. And Midwest flooding in 2008 caused 24 deaths and $15 billion in losses. Across the country, the United States has suffered from more than $260 billion in flood-related damages between 1980 and 2013--it's the most common natural...