That's right, and the chart doesn't even show the whole problem because it shows just the federal dept. Consumer dept and dept of financial institutions is where the biggest growth has been: http://www.ft.com/cms/s/0/a09b317e-898d-11dd-8371-0000779fd1... (scroll down for the charts)

Another interesting question is of course who owns this dept and how much of it is owed to foreigners, because that points to possible ways of silent default ;-)