BE afraid. That’s the takeaway for both investors and taxpayers in the 307-page Senate report detailing last year’s $6.2 billion trading fiasco at JPMorgan Chase. The financial system, thanks to dissembling traders and bumbling regulators, is at greater risk than you know. After bailing out the nation’s banking system in 2008, taxpayers and investors have been assured that such a crisis will not happen again. The Dodd-Frank legislation was supposed to make our system safe from the kinds of reckless banking activities... --SNIP-- But the true value in this Senate investigation is its spotlight on the ability of bank executives...