“Trading scandals, legal fines may ramp up U.S. banks’ capital needs”, Yahoo Finance

For years most U.S. banks paid scant attention to operational risk because earlier versions of Basel neglected it. Additionally, such risks, like the possibility of a rogue trader, are highly unpredictable.

“Operational risk is really a bear to model,” said Mayra Rodriguez Valladares, managing principal of MRV Associates, a consulting firm.