2- The US Debt Service

Answer the following question.
1) Is the US debt service too high? Where should it be according to experts (Economists)?
2) is the zero basis (0%) fed rate too low? Is it sustainable?
3) both Germany and Japan. Have negative interest rates on their bond issues. What impact do they have on their money supply?

Answer these questions in paragraph format, using credible export sources from economist, business publications, and the like. The paper should be between 750 to 1250 words total due to the time constraints. APA format must be used properly citing your sources and for your bibliography.