Trump's call to abolish FEMA as Mississippi sees more frequent, extreme flooding, prompts group to name river the nation's most endangered waterway.

Mississippi skies are clear and sunny now, but a threat looms after last week's storms: Likely flooding of the Mississippi River and some tributaries.

Old Man River, indeed. Still, 70 million years ago the Mississippi was nowhere near as large as it would become. Blum has detailed how the waterway grew as it added tributaries: the Platte ...