Well with Obama trying to expand the military influence of America, I doubt America will get out of the debt crisis any time soon. Well this will be too extreme but if things don't work out until the end, America will have no choice but to declare moratorium.
As for NATO, why do they still even run that organization? The Cold War is over and there is no need for a huge militaristic organization like that. And about having 900 bases in 135 countries? That is just ridiculous.
My country have a couple of US bases and let me tell you. They only cause problems and damage the reputation of US. People now think American soldiers are nothing but scums plaguing the country.
