Wary of Risk, Bankers Sold Shaky Mortgage Debt

By JENNY ANDERSON and VIKAS BAJAJ

As the subprime loan crisis deepens, Wall Street firms are increasingly coming under scrutiny for their role in selling risky mortgage-related securities to investors.

Many of the home loans tied to these investments quickly defaulted, resulting in billions of dollars of losses for investors. At the same time, many of the companies that sold these securities, concerned about a looming meltdown in the housing market, protected themselves from losses.