I've been listening to the CD version of David McCullough's book on the
Johnstown flood of 1889, and the similarities between it and the current situation in NOLA are striking.
Both were caused in part by natural disasters but in part by the hubris and carelessness of the people in power. In both cases, experts had been warning of the dangers of neglecting engineering structures (dams in Johnstown, levees in NOLA), with industry exacerbating the situation (by dumping into the rivers, making the channel much more narrow and by building levees that caused much erosion and prevented the replenishment of silt). The indifference of those with the pursestrings was staggering. In both the death tolls ran into the thousands and class issues were front and center(in Johnstown, the areas closest to the river were populated by the immigrant ironworkers, while the dam that burst was holding back a manmade lake at a hunting and fishing retreat peopled by the likes of Andrew Carnegie and Henry Clay Frick).
In both cases, many of the deaths were not immediate: In Johnstown, many floated down the river on rooftops or clinging to wood only to drown, be struck by debris, or in a horrible fire when the debris logjammed at a bridge. Afterward, reporters wrote lurid stories with little basis in fact of looting and the desecration of bodies for their jewelry. In Johnstown, almost universally it was the Hunkies (a catch-all moniker used to describe anyone from Eastern Europe who spoke with a thick accent and worked in the ironworks or mills) who were demonized as the perpetrators.
And in Johnstown, no one ever faced charges for negligence or for their role in the disaster.