Rachel Maddow called attention to a problem that's been brewing at the Fort Calhoun nuclear power plant in Nebraska, on the shores of the Missouri River. The power plant is currently flooding, due to heavy rainfall this season, and errors by plant workers that have broken down the facility's defenses against floods.

She called nuclear power "the world's most terrifying and consequential means of boiling water," and though that sounds fairly simple, exposed a number of flaws within the Nebraska plant.

"For now, everything is fine, if occasionally wet at Fort Calhoun, we are told," Maddow said, but noted that the rainy summer could raise the Missouri River the two additional feet it would take to flood the reactor cores.

Watch the video below, aired June 27, 2011, embedded courtesy MSNBC.

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