What are the challenges and troubles facing japan?

Question:

I have to write an investigative article for my English class on the Japanese crisis. What do I concentrate on, and what indeed are the troubles and challenges facing Japan?

Answer:

The biggest problem in Japan is that there are too many dumb Americans living here.
We need to clean up our country. Fortunately, some of them seem to leave Japan because of the current tsunami disaster. I hope they will never come back to our country.