I recently wrote an essay for my Modern Japanese History class on the Rape of Nanking and Japan’s censorship of its war crimes, so this is an all too familiar subject to me.
I can’t really add that much to what has already been said, because it’s all true. Japan has a history of censoring what it feels would cause negative reactions with the public, especially those against the government. Even back before modern times, when the shogun and daimyo ruled the land and samurai (even low-class samurai) were allowed to cut down any commoner who failed to bow before him, there was very little in the way of rebellions from those suffering people, simply because they were taught from birth that it was the samurai’s just right to do things like that.
The tradition of respect and deference to higher authority lingers to this day, obviously. It’s part of the reason the Japanese are so well-mannered. On one hand, those who do censor such things as “The Cove” and Japan’s atrocities during WWII claim to be doing so not to upset the Japanese people. In reality, they’re imposing self-censorship on behalf of the government (and in older times, the Emperor). Japan is the Land of the Rising Sun, blessed by the Sun Goddess Amaterasu herself, so obviously it is a perfect country. Not true, of course, but the government seems to be doing a good job of making its people believe that, not to mention all the pre-teen anime fans who see Japan as a perfect paradise.
Don’t get me wrong; like @ipso, I also love Japan, its history, culture and people. But I don’t want to delude myself that it is nothing more than a flawed society just like every other one. Japan’s cultural tendancies may explain why all this censorship happens, but it doesn’t give them an excuse. Germany had to own up to its crimes against the Jews in WWII, and the United States to the many terrible things we did to the Native Americans (it hasn’t been that much, but at least we accept that we were in the wrong). Japan should be no exception.
On a side note, I have an interesting anecdote about this subject. Last summer, the film The Cove premiered at the film festival in my hometown, where I work at a local bookstore. One day, a group of pleasant and polite Japanese tourists came into the shop, looking at all our cute things (we sell purses, toys, and other decorative things at the store too) and buying everything they could with a whale on it. They spoke little English, and I happen to study Japanese, so I (very excitedly) got to conduct business with them in Japanese – my first time doing something like that. It was awesome. Shortly after they left, a local guy who happened to be associated with The Cove came in and started ranting about how that same group of Japanese tourists were actually part of the companies that were facilitating this slaughter of dolphins as shown in that very film. My coworkers knew the guy from around town as being a little strange (he was banging the counter as he talked about how he was following the group of Japanese to see what they did, which was just touristy stuff like shopping and going to museums), but he left an impression. In five minutes I had gone from feeling elated about my Japanese experience to feeling quite perturbed and confused. Ah, the life of an independent bookseller.