The Nation: Katrina's Race War Four Years Later : NPR: A segment on Anderson Cooper 360 investigates the white vigilante justice that tore through New Orleans after Hurricane Katrina in 2005. 'Katrina's Hidden Race War', a cover story featured in The Nation, supported by the Investigative Fund at the The Nation Institute, and reported by A.C. Thompson (now a staff reporter at ProPublica), was the first to reveal how white residents of New Orleans shot at African-American men.