They actually break down the numbers and techniques used by some of the banks. Perhaps Drew or one of the other accountants here can take a look.
How can our trusted authorities be so blatantly deceptive and still keep their jobs? Perhaps you should ask Fed Chairman Ben Bernanke. Not long ago, for example, he declared that the total losses from the debt crisis would not exceed $100 billion, while conveying the hope that most of those losses could be soon written off. Also around that time, the International Monetary Fund (IMF) estimated the losses would be $1 trillion, with only a small percentage written off. The IMF’s latest estimate: $4 trillion in losses, with only one-third of those written off so far. Bernanke’s error factor: He was 4,000 percent off the mark, in a world where 50 percent errors can be lethal.