Charles Krauthammer on Fox News Sunday

"We are six percent or less of the world's population, yet we give almost half. We are a very small number of people, relatively speaking, and we carry the weight of a dozen countries. Secondly, we maintain a military structure that keeps the peace of the world.....Who is in the Indian Ocean with the aircraft carriers, helicopters, skilled personal? No one has the infrastructure in the world, we spend almost half a trillion dollars a year on our military structure, which is essentially the fire department of the planet and it is always at the disposal of people hit in a national disaster.....Incidentally on food aid, we give 60% of all the food aid in the world. It is simply irresponsible to talk about the U.S. as anything other than the most generous nation on the planet."

And remember, that doesn't include all of the private donations Americans give to charities each year.