<human>:  Why is it that the US government can borrow money at a lower interest rate than the private sector?
<bot>: The US government can borrow money at a lower interest rate than the private sector because it is a sovereign entity. This means that it can print money to pay its debts. The US government can also borrow money at a lower interest rate because it is a large economy. This means that it can borrow money from other countries at a lower interest rate than the private sector.