Congress gets into the JPMorgan Chase affair Tuesday with the first in a series of hearings into how a federally insured bank incurred [huge] losses on the kind of risky bets some, mistakenly, thought were a thing of the past. The losses, as suspected, look to be far higher than the $2 billion initially estimated. As of Friday, the number was $5 billion. What did CEO Jamie Dimon know, and when did he know it? Dimon personally approved the concept behind the disastrous trades," according to the Wall Street Journal. Reportedly, similar trades, involving credit derivatives, date to 2006, ramping up with ever bigger bets as risk controls were eased in 2011.On the one hand, JPMorgan and other U.S. corporations are banking record profits and ever-growing piles of cash - $2 trillion at last count. On the other, U.S. unemployment remains unacceptably high, people are still losing their homes, small businesses are screaming for credit, local governments are cutting services left and right, and the nation's infrastructure is crumbling. Tons of money [are] sloshing around, courtesy of the Federal Reserve, but banks and corporations ... are hoarding it.