Not to beat a dead pie, but this budget "chart" does not include the massive federal unfunded liabilities for -- among many other programs and agencies -- social security, medicare, government pensions, Obamacare, Freddie Mac, Fanny Mae, FDIC, FSLIC, CULIC, SIPC, hurricane insurance, crop insurance, flood insurance, nuclear plant insurance and the Pension Guarantee Corporation.
Estimates of this aggregate federal obligation BEGIN with tens of trillions of dollars, and run as high as two hundred trillion.
As I see it, eventually the only option left to politicians will be to repudiate the country's obligations by inflating our currency a la Germany after WWI (or more recently, Zimbabwe) -- destroying savings, the banking system, the middle class and and the use of paper/electronic currency . We can only hope that the resulting chaos, rioting and mayhem eventually subsides, and eventually a sane society rises to take the place of our failed democracy. But sadly, the history of humans is to repeat this profligate government spending pattern -- time after time after time.