Will the U.S. Always be The World's Keeper?

Maybe I have the wrong attitude, but after reading this article about how George W. Bush let the president of Pakistan know that he was unhappy with the way things are going over there, which are horrendous, I know.  But what about the frigging people in this country who need help? The article talks about all the hundreds of millions of dollars in aid we have given Pakistan, and hinted at a threat of intervention. Meanwhile, me and millions of Americans have no health insurance and people are sleeping on the street across America.
I just don't get it.