Total foreign aid for 2012, the most recent year I could find data for, was $37 billion. That's about 3 days of federal spending. We could shut down the military, eliminate NASA, turn off all foreign aid, shut down all of the federal bureaucracy, cut absolutely everything but entitlements, and we are still headed for the cliff.
Start looking and the information is right out there in plain sight. The politicians know it, the economists know it, and while we should know it, we get weeks of "How much air was in the footballs?" instead.