The other 10 billion should be the IRS claim which is meritless. How could wmi be getting nol refunds if this claim were legitimate. As to the piercing of the corporate veil, wmi is/was a bank holding company not a nickel and dime home-repair contractor corporation with a thousand dollar capital contribution. Look how the regulators tried to indirectly pierce with the cayman's ---and that doesn't work because of the bankruptcy courts avoidance powers. So imho piercing the corporate veil is damn near impossible with wmi.