Geithner to hold briefing Monday on toxic assets plan By Siobhan Hughes Last update: 8:37 p.m. EDT March 22, 2009 WASHINGTON (MarketWatch) -- U.S. Treasury Secretary Timothy Geithner will on Monday provide details about the government's latest plan to help rid banks of toxic assets clogging the financial system. The Treasury Department said in a press release that it will hold the briefing at 8:45 a.m. EDT on Monday. The Treasury Department's program involves setting up a new investment fund to buy mortgage-related securities and other assets weighing down bank balance sheets. The new Public Private Investment Program would combine taxpayer money with private funds, aiming to buy loans and free up banks to renew lending. The Wall Street Journal earlier reported that the Treasury could announce the new three-part plan as early as Monday.