booktv, "wall street journal" reporter kirsten grind talks about her book, "the last bank," detailing the collapse of washington mutual in 2008, the largest bank failure in u.s. history. >> so the crisis, they say it happened slowly and then quickly, right? and that was absolutely the case at wamu. it began to get very bad. all of their issues, um, internally, their internal controls had just fallen apart. at one point they were making mortgages on 12 different systems. they had grown so fast that there was just no be -- no control internally. their mortgage division had ballooned out of control, they had this massive trading desk. they had turned into not a mortgage lender as they were only 15 years earlier when lou was there, but almost a mortgage middleman in which they were sucking up mortgages and spitting them out and making a lot of money in between. so all of this -- they had turned into this just as housing prices, which had been going up astronomically every year, began