I bring this up only because it happens every time I am in Tokyo. I travel throughout Asia including Communist Countries and never get even a look from the police. In Tokyo I get stopped for simply walking down a plain street in the middle of the day and asked to produce my passport. Both times on both trips I did not have it with me. The first time they radioed and got the “OK” to let me go. On this last trip an undercover agent approached me while I was paying for my subway ticket and showed me his badge and demanded a passport. I showed him my driver’s license but he could speak English so within a minute a dozen undercover agents surrounded me asking why I was in Japan. Eventually I mentioned something about living in Ichiro's team city and everyone went away after apologizing. Seriously, I have been to a lot of places in Asia and Eastern Europe but never been treated like this. I feel like the secret cameras see a Caucasian and instruct the agents to intercept me. Truly I am doing nothing suspicious. It seems almost racists to me but may be part of Japans effort to keep their culture closed off from outsiders.