What about the mainstream critique of American principles of economics textbooks?

The finansial crisis and the subsequent recession have been a real challenge to economists as well as to econimic theory. In the media a blame game has been going on and economists and their theories have been portrayed as one of the mail culpits. A repeated message has been that, had economic theories been of more relevance, we might have avoided the crisis, or at least not been taken so much by surprise. The economics textbook - as one important representative of economic theory - has also come under closer scrutiny and critism due to the financial crisis.