It is the Keynesians who believe that disasters are good for economic growth. They have suggested that events such as the Fukushima nuclear disaster, the Christchurch earthquakes and even the Australian bushfires are good for the economy because they will result in stimulatory government and consumer spending.

Even the Lord High Priest of modern Keynesian theory, Professor Paul Krugman, has suggested:

If we discovered that space aliens were planning to attack, and we needed a massive build-up to counter the space alien threat, and inflation and budget deficits took secondary place to that, this slump would be over in 18 months.

He was...