Here, in essence, pools of credits are sliced into riskier and less risky bits (or tranches) and sold.
Two years ago, after the government banned the risky bits of cows from the human food chain, Canadians were urged to do their patriotic duty and eat more beef.
As the more lucrative and less risky bits of specialisms get creamed off to the private sector, some departments will have to be closed down, resulting in downsizing DGHs with a real possibility that some will close down.
Wall Street banks were still making a killing from the packaging and sale of everything else, though, so they devised a plan to get rid of some risky bits: they'd buy them up themselves, without telling anybody.
In the movie's riskiest bit of casting, Jonathan Cake's Mengele is a dashing figure: arrogant and sadistic, but not without a sinister charisma.
Rewards for holding the riskiest bits of collateralised debt obligations (pools of debt often bought by hedge funds) fell sharply until April.
He is looking to spend up to £2 billion buying small banks, building societies and even parts of larger banks that focused on the riskiest bits of the mortgage market.
