Crie du coeur about tourist treatment in Japan:

I’m writing this email to all of you because I feel it’s in your best interest to understand how dangerous it is for tourists to visit Japan.

On July 2nd in Shinjuku, a 74-year-old American tourist walked into a koban to ask directions. Inside the koban was an older (senior) police officer and a younger (rookie?) police officer. The American asked where Kinokunia Book Store was and the police officer responded by asking the American if he had a pocket knife. The American being the law abiding citizen that he is said “Yes!” and handed it to the senior police officer. After a quick measurement of the knife, the police officer arrested the 74-year-old man for having a pocket knife 1 centimeter over the legal limit.

The most amazing parts to the story, a new law about pocket knives had just gone into effect one day before thisTOURIST was arrested, making this entire situation more ridiculous! Moreover, 2 other American tourists were arrested that same day at the same koban.
[He was held in police custody for nine days.]

UPDATE JULY 28, 2009: A version of this letter was published in the Japan Times today.
UPDATE AUGUST 25, 2009: The Japan Times corroborates the story as true with an article.