this morning the olympic committee responds. newsroom begins right now. good morning. happy friday 13th. i m carol costello. we begin this hour with a very bad day for the nation s biggest banks. jpmorgan chase and its ceo jamie dimon are opening their books and telling us just how much money the firm lost in a bunch of risky trades. the blunder stunned the financial world and fueled more debate on whether banking regulations are tough enough. alison kosik is at the new york stock exchange and has been listening to a jpmorgan conference call this morning. alison, what have you heard? if you re totalling up the losses so far this year from those trading losses from the risky trades, what it adds up to is $5.8 billion. that s almost triple what was originally thought. but jamie dimon said they could get bigger by another $1.7 billion. keep in mind just because the trades were discovered and announced to everybody, you know, they can t just suddenly be stopped. so what has