“If you think the big banks learned painful lessons about risk-taking during the financial crisis, think again: They’re still taking the same risks, and we don’t even know how big those risks are.

In the latest edition of The Atlantic, Frank Partnoy and Jesse Eisinger have a 9400-word opus on the untold horrors lurking on big-bank balance sheets. The elevator summary: Boy, banks sure do a lot of dodgy trading, and they hide their potential losses from investors.

This may not come as shocking news. But it’s one of those things that we can’t hear often enough, with the momentum for reform cooling every day we get further away from the crisis. Big banks still have the capacity to blow up the financial system, and our inability to trust them makes another disaster even more likely.

Particularly useful is Partnoy and Eisinger’s deep dive into the latest annual report of a supposedly staid, conservative bank, Wells Fargo. The authors discover that the bank is not simply lending money and giving away toasters, like banks used to do. Based on the authors’ accounting, it looks like nearly $20 billion of Wells Fargo’s $81 billion in revenue in 2011 came from one kind of trading or another.”

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Read full Huffington Post article here