Missouri River spills into Hamburg, Iowa, other cities; more rain could be on the way  Omaha World-HeraldNebraska underwater: 74 cities, 65 counties declare emergencies as flooding envelops state  USA TODAYMidwest braces for more rain as deadly and historical flooding devastates the region  CBS NewsAt Least a Dozen Levees Breached in 'Historic' Midwest Flooding  The Daily Beast3 dead as hundreds of homes flooded across Midwest; VP Mike Pence to visit Nebraska  WLS-TVView full coverage on Google News