The United States Coast Guard closes a section of the Mississippi River near Caruthersville, Missouri due to heavy flooding.
Voters in the U.S. states of Florida, Illinois, Ohio, Missouri, North Carolina and the commonwealth of the Northern Mariana Islands head to the polls for Republican and Democratic Party primaries that the media has dubbed "Super Tuesday 2".
The floods have disrupted major food and energy distribution in affected states. [https:--www.bloomberg.com-news-2011-05-07-mississippi-river-swells-close-to-record-in-tennessee-prompts-evacuations.html "(Bloomberg)"].
Despite the breach of a levee on the Mississippi River to ease flood pressure in southern Illinois, massive flooding continues from Minnesota to Louisiana and hundreds of square miles of mostly farmland in Missouri are under water.
The US Army Corps of Engineers blasts a hole in two levees along the Mississippi River, flooding some 200 sqmi of Missouri farmland in an effort to save the town of Cairo, Illinois further downriver from record-breaking flood waters.