Flooding across the Upper Midwest, including Iowa, over the last couple weeks has soaked homes and fields and left local governments scrambling. Dirk Lammers/AP hide caption

itoggle caption Dirk Lammers/AP

Authorities say the drug operation allowed customers to pay at one location, pick up the heroin at another and be back on the expressway within minutes. Scott Olson/Getty Images hide caption

itoggle caption Scott Olson/Getty Images