Investment advice - avoid America

Financial Decline and fall of the American Empire is an incredible (as in 'I found it hard to believe what I was reading') analysis of present day America. The author's conclusion is that America's decadence makes it a very risky place to invest. This plays to my prejudices, so I'm tempted to agree, but I am amazed to see an opinion like this on an investment site. I'm glad to see that for the moment at least the freedom of the press still exists in the UK.