Reduce the debt by creating long term economic growth. Move tax payer funds from an Arms race to a Brain race.

The future of the World economy is in knowledge sectors. The United States spends enough money to create one of the best education systems to promote a competitive advantage in a world knowledge economy and make the 21st Century truly an American Century.
If we are going to spend trillions of dollars of taxpayer money, we need to use it to promise a future for the next generation. The United States currently spends far more than any other country on military spending. This expenditure does nothing to ensure economic growth, but it does encourage future wars.
If we are going to saddle the next generation with debt, let us at least use the money they are going to pay for their own benefit, and the country's as well. The best way to pay down the debt is through economic growth.