host: marc goldwein is our guest and you can call on the lines. we start with keith in ohio on our independent line. you are on with our guest, good morning. caller: good morning. we have been doing this i think for about three decades. we have been running up the debt. i don't know if there were even a trillion dollars when bush senior was president. so how long can we do this? i understand. pretty soon we won't even be able to pay the interest. when will it be recalculated when interest rates go up and we need to redo however that works? how long can we do this? i guess we are in uncharted territories. can we sustain this for more decades? i think we are going to collapse. guest: you bring up a great point about interest costs. as they rise and we are paying off more debt, it is eating the rest of the budget alive. next year we will spend more on interested we spent on the larger level. than a decade, interest will eclipse the defense budget. within a quarter-century, it is on course to be the single largest program, larger than medicare, sustai