Brokerage firms spend big bucks on TV and print ads that depict their stockbrokers as informed, sophisticated professionals who are looking out for clients. So it might come as a surprise to know that when investment products blow up, brokers have been known to complain that they had no way of knowing that the product was bad.

In my story for The New York Times tonight, I show how brokers wiggle out of responsibility  when they sell customers a product that turns out to be garbage. You can read the story here.