60 Minutes: A Second Mortgage Disaster On The Horizon

As correspondent Scott Pelley reports, it turns out the abyss is deeper than most people think because there is a second mortgage shock heading for the economy. In the executive suites of Wall Street and Washington, you're beginning to hear alarm about a new wave of mortgages with strange names that are about to become all too familiar. If you thought sub-primes were insanely reckless wait until you hear what's coming...

The trouble now is that the insanity didn't end with sub-primes. There were two other kinds of exotic mortgages that became popular, called "Alt-A" and "option ARM." The option ARMs, in particular, lured borrowers in with low initial interest rates - so-called teaser rates - sometimes as low as one percent. But after two, three or five years those rates "reset." They went up. And so did the monthly payment. A mortgage of $800 dollars a month could easily jump to $1,500.

Now the Alt-A and option ARM loans made back in the heyday are starting to reset, causing the mortgage payments to go up and homeowners to default.

"The defaults right now are incredibly high. At unprecedented levels. And there’s no evidence that the default rate is tapering off. Those defaults almost inevitably are leading to foreclosures, and homes being auctioned, and home prices continuing to fall," Tilson explains.

"What you seem to be saying is that there is a very predictable time bomb effect here

Asked how many of these option ARMs he imagines are going to fail, Tilson says, "Well north of 50 percent. My gut would be 70 percent of these option ARMs will default."