The evidence keeps piling up that the budget deficits aren't increasing interest rates and aren't harming the economy. But deficits aren't just an economic problem- they're a moral problem, says economist Andrew Samwick:
Suppose for the sake of argument that deficits don't put much upward pressure on interest rates. Even in that case, they still have to be financed at the existing interest rate, and the burden of financing them has to be borne by someone in the future. Taxing someone in 2020 to pay for our spending binge in 2003 violates my notions of fairness, and that is a substantially more salient issue here than any additional concerns about efficiency.
Hold on there- that's a bit too simple.