Uncle Sam's new crusade against banks

`` some legal experts think they see a major weakness in the feds' case. They point to a legal concept known as "loss causation" or, as some have called it, the "Are you kidding me?" defense. The FHFA claims the banks overstated the value of the mortgaged homes and the number that were owner-occupied. But those alleged misstatements, insist the legal experts, had nothing to do with Fannie and Freddie's actual losses.''