Greece debt problems.... and USA?

Today I read an interesting article, in which Nouriel Roubini was giving his opinion on the Greece crisis. He compare this crisis with the crisis of Argentina 2001, explaining that given the Greece numbers (worse than the Argentina figures previous to the default),  we need a miracle in Greece. The figures in the chart are the ones described by Roubini for Greece and Argentina. I calculated the figures for U.S.A and compare them with Greece and Argentina.

The output is staggering: