‘My own impression,’ writes Rebecca Solnit, whose book A Paradise Built in Hell (2009) gives a masterful account of Katrina’s aftermath, ‘is that elite panic comes from powerful people who see all humanity in their own image.’14 Dictators and despots, governors and generals – they all too often resort to brute force to prevent scenarios that exist only in their own heads, on the assumption that the average Joe is ruled by self-interest, just like them.