At the end of last week's letter on the whole mortgage foreclosure mess, I wrote:

"All those subprime and Alt-A mortgages written in the middle of the last decade? They were packaged and sold in securities. They have had huge losses. But those securities had representations and warranties about what was in them. And guess what, the investment banks may have stretched credibility about those warranties. There is the real probability that the investment banks that sold them are going to have to buy them back. We are talking the potential for multiple hundreds of billions of dollars in losses that will have to be eaten by the large investment banks. We will get into details, but it could create the potential for some banks to have real problems."

Real problems indeed. Seems the Fed, PIMCO, and others are suing Countrywide over this very topic. We will go into detail later in this week's letter, covering the massive fraud involved in the sale of mortgage-backed securities. Frankly, this is scandalous. It is almost too much to contemplate, but I will make an effort.

But first, let me acknowledge the huge deluge of emails I got over last week's letter, the most I can ever remember. I thought about just making this week's letter a response to many of them, but decided I needed to go ahead and finish the topic at hand. Maybe another time. As a side note, I quoted a letter that came to me anonymously via David Kotok. I said if I found out who wrote it, I would give them credit. It was originally written by Gonzalo Liro, at www.gonzalolira.blogspot.com.

Many of you wrote to point out that his argument about the tracking of title was not correct, but others pointed out many other issues as well. This is one of the most complex problems we face, and I got a lot of good information from readers. It just makes me wish I had our new web site finished so you could avail yourselves of the wisdom among my readers. We are close, down to final changes. And now, on to today's letter.

Trouble, oh we got trouble, Right here in River City!
With a capital "T" That rhymes with "P"
And that stands for Pool, That stands for pool.

We've surely got trouble!
Right here in River City,
Right here! Gotta figger out a way
To keep the young ones moral after school!
Trouble, trouble, trouble, trouble, trouble...

- From The Music Man

(Quick last-minute note: I think this (and next week's) is/will be one of the more important letters I have written in the last ten years. Take the time to read, and if you agree send it on to friends and responsible parties. And note to new readers: this letter goes to 1.5 million of my closest friends. It is free. You can go to www.frontlinethoughts.com to subscribe. Now, let's jump in!)

There's trouble, my friends, and it is does indeed involve pool(s), but not in the pool hall. The real monster is hidden in those pools of subprime debt that have not gone away. When I first began writing and speaking about the coming subprime disaster, it was in late 2007 and early 2008. The subject was being dismissed in most polite circles. "The subprime problem," testified Ben Bernanke, "will be contained."

My early take? It would be a disaster for investors. I admit I did not see in January that it would bring down Lehman and trigger the worst banking crisis in 80 years, less than 18 months later. But it was clear that it would not be "contained." We had no idea.

I also said that it was going to create a monster legal battle down the road that would take years to develop. Well, in the fullness of time, those years have come nigh upon us. Today we briefly look at the housing market, then the mortgage foreclosure debacle, and then we go into the real problem lurking in the background. It is The Subprime Debacle, Act 2. It is NOT the mortgage foreclosure issue, as serious as that is. I seriously doubt it will be contained, as well. Could the confluence of a bank credit crisis in the US and a sovereign debt banking crisis in Europe lead to another full-blown world banking crisis? The potential is there. This situation wants some serious attention.

This letter is going to print a little longer. But I think it is important that you get a handle on this issue.