I get hit up by PR flacks pretty often these days, and usually I don't bother to promote whatever it is that they're pushing. I'm going to make an exception for Naomi Klein's new book and short film, "The Shock Doctrine". Klein draws a parallel between the way individuals are broken in interrogation through shock (read: torture) and by the way societies can be reshaped through the same methods. When you have a major disaster or war - whether it be a smaller war like the Falklands war, an attack like 9/11 which made Americans obedient, fearful and submissive to authority - or a natural disaster like Sri Lanka or Katrina, people can be shoved aside. So 9/11 was used to launch the "war on terror" which included a 137 billion/year increase in spending by the Pentagon by "contractors" and the Department of Homeland "Security" spending 130 billion on contractors. Katrina, of course, led to the city being cleansed of undesirables and a huge land-grab by speculators. Meanwhile Blackwater mercenaries have been used to keep ex-residents from returning and reclaiming their houses. Less known to Americans is the Sri Lanka disaster, in which most residents (1 million) weren't allowed to return (including fishermen) and the coastline was turned over to hotels and to the tourism industry.
Disasters are very useful if you're in charge. You can be an FDR if you choose, and use something like the Great Depression or Pearl Harbor to bring people together and make life better for everyone. But that hasn't been the usual pattern of the last thirty years - rather the pattern has been to use shocks to disposses ordinary people and enrich one's supporters.