Treasury Secretary Timothy Geithner is preparing to unveil a plan today to purchase as much as $1 trillion in troubled mortgages and other assets from banks. The government is reaching out to hedge funds, private equity firms and sovereign wealth funds to help buy the toxic assets. The Obama administration has described the plan as a public-private partnership, but most of the actual money will be put up by the government. We speak with Nobel Prize-winning economist and New York Times columnist, Paul Krugman. [includes rush transcript]