It's a risk and a long-shot at that, usually unpaid tax cuts create deficits. Balanced spending guarantees no deficits and no debts.
It is no more of a risk than raising taxes, probably less of one. Raising rates does not = increasing revenue. You just don't know how people will react to higher taxes. I know people who will invest money in 3% cds rather than pay down their 6% mortgages because they like the tax savings the mortgage affords. People are stupid about taxes, and are more stupider about higher taxes. The way the government should attack deficits is by basing spending on receipts, not by spending and then taxing for the difference.
It ain't rocket science. I'll use small words. We match the income to the expenses. No borrowing. Pay as we go.
Saving would be terrible. If the government is saving they are stealing more money from us than they need to operate and punishing the whole economy.