text:  Floodwaters keep rising and causing more damage in the Midwest. CBS Minnesota reporter Jonah Kaplins in Jefferson, South Dakota. There's just been so much water that these fields that should be yielding crops have been turned into lakes. Farmhouses were never meant to be waterfront property. And this is important because, you know, these farmers, they don't just feed Americans. They feed the American economy. Some rivers have yet to crest and will do so this weekend. This is CBS News.