How will regulators prevent another sudden lurch downward?
America's housing market may yet lurch down again as foreclosures rise, high unemployment takes its toll and a temporary home-buyers' tax-credit ends.
Mr Paulson's plan is to use public money to buy assets from Banks whose value has slumped with every lurch downwards in America's housing market and which have been shunned by the private sector.
The temptation is to sell now, before the next lurch down.
