Guardian: America, now entering its hurricane season, was today urged to abandon the outmoded “patch and pray” system of levees – whose failure magnified the devastation of Hurricane Katrina – and borrow from the Dutch model of dykes and water management. Mary Landrieu, a senator from New Orleans who was brought to tears during a helicopter tour of the destruction of 2005, said America needed to rethink its entire approach to low-lying coastal areas and adopt an integrated model of water …