Rising Tide.

"As the Hurricane Katrina anniversary coverage blows out to sea and New Orleans braces for another year of neglect, it's worth pausing to consider the fallout from the disaster that was previously deemed the worst in U.S. history -- the 1927 Mississippi flood." Slate's David Greenberg takes a moment to remember the big 1927 flood, which significantly altered New Era attitudes about the appropriate duties of the federal government (and will also play a significant role in the latter half of my dissertation.)