flooding of biblical proportions along missouri river?

An author writing a book on flooding hazards of Missouri River, Bernard Shanks wrote informative commentary on risks, last month. St Louis Total Information AM interviewed Shanks following first wakes of heightened concern. A more recent Shanks interview is available here. The old Fort Peck Dam, in eastern Montana, constructed with a faulty design never used again is still considered a low risk to fail by Shanks. The bad news is if the dam were to fail it would be sudden with little warning. This would heighten risks of five lower dams failing and sweeping radioactive materials stored at Fort Calhoun NE nuclear plant into the flood. Will life jackets, inflatable rafts and Geiger counters be in high demand before the summer is out?