ms. boccia. guest: i agree with what nancy said about the financing overall. it's important to keep in mind where the caller is right as well is that we are hurdling our way towards a fiscal crises. two of the three major credit agencies have already taken the step of downgrading the u.s. debt. the third credit agency has turned our outlook, our credit rating outlook, to negative. investors are paying attention. we are also paying much, much higher interest rates now than we were before. how does social security play into that? that $2.7 trillion that nancy mentioned that is a assigned to the social security trust fund, is parter of our gross national debt which is as big as the entire economy of the united states. while social security still has trust fund reserves, in terms of cash flow, because you have to keep in mind it's a pay-as-you-go program. those trust fund reserves weren't invested in real market assets. they were invested in treasury bonds. where does the treasury get its money from?