It is just over three score years and ten since the Great Depression. Judged by its rejection of the plan put forward by Hank Paulson, US Treasury secretary, Congress believes it is time to risk another one. That slump was, arguably, the greatest catastrophe of the 20th century: it was, among other things, responsible for the events that led to the second world war – not least Hitler’s rise. One can only imagine what horrors a depression might bring now?