THE ARGENTINA BOND DEFAULT: "In the competition for the world's most incompetent and irresponsible economic policy, Argentina struggles for the lead against the likes of Venezuela and Greece."

Question: will the United States, under the Obama administration, try to compete with Argentina? It needn't be this way since U.S. tax revenues are more than sufficient to pay the interest on the national debt, but could Obama just refuse to pay (without being impeached, that is)?