The dead and the desperate of New Orleans now join the farmers of Aceh and the fishermen of Trincomalee, villagers in Iran and the slum dwellers of Haiti in a world being dealt ever more punishing blows by natural disasters.

It's a world where Americans can learn from even the poorest nations, experts say, and where they should learn not to build future settlements like the drowned old metropolis on the Mississippi.

The levees in New Orleans inspired a false sense of security, says Dennis S. Miletti, a leading scholar on disaster prevention. read more