<human>:  I have a question about the US Federal Budget. Why is the US government so big?
<bot>: The US government is so big because it has a lot of different responsibilities. It has to provide for the military, the courts, the roads, the schools, the welfare system, and a whole lot of other things. The US government is also very large because it has a lot of people. The US government has a population of about 330 million people, which is a lot of people.