I think that the most obvious answer is the correct one: the authorities were not able to find sufficient evidence of criminal behavior in any of the cases they investigated, and they investigated many, because there weren't any to be found.
The love fest between Barack Obama and his top fundraiser Penny Pritzker that has led to her being nominated as Commerce secretary would not be so unseemly if they both just confessed that they did it for the money
Goldman's foray into the world of sub-prime mortgage servicing is one that company executives would like relegated to the dumpster along with the water-logged sandbags that shielded their New York HQ from the ravages of Hurricane Sandy.
Washington failed to act the first time around -- when lenders were engaged in a frenzy of predatory lending. The foreclosure scandal is a second chance for lawmakers to prove they can ferret out the truth.
Our economy is tied to the U.S. economy and the U.S. Republican policies have failed. Most South African analysts believe a black U.S. president will more easily de-polarize the world and undo the divide between the East and West.