What are good jobs for someone from america to get in Japan?

Question:

I planed on duel majoring in psychology and criminology and becoming something like a profiler for the FBI. I doubt that would be useful from an immigrant new to their culture though, not that i still won't try. I was just curious about other options, something might catch my interest. Is there something I can do with criminology in Japan that could be useful form america?

Answer:

Teaching English. You need to be a citizen for those police related jobs. You also need native level Japanese. That takes a very long time. I know a guy who has lived there with a Japanese wife for 20 years who doesn't have native level Japanese.