Smoking Mirror and Kilgore have extremely valid points in answer to the text book matter.
What's important to note first and foremost regarding Japanesse outlook on history education is that to them it is not a way to get the children (remember, we are talking about the school books here - there are a number of very accurate japanesse book about the war itself, they just aren't approved by the ministry of education for use in school) to think about the mistake of the past, but rather a way of teaching them important morals vallue such as "As long as we Japanesse are united and ready to go for sacrifice, we are a great nation." (and by sacrifice, I don't mean the "Kamikaze" kind, I mean the "Work above all" kind). Given how hard they had to work to restart from the ashes, this is no real surprise.
Of course, admitting that they did all those things through hard work and sacrifice would be a bit against what they are trying for there... (and side note to Darkshade, I am pretty certain that the Japanesse govt *has* appologized (only recently, admitedly) to the Korean comfort women).
Finally, as the other two I noted above have already mentioned, *EVERY* country tend to gloss over its dark points in the history books, unless its internationaly impossible due to the general knowledge of the event/situation. Which is why the Holocaust (or slavery, for you americans) isn't glossed over all that much (that I know), whereas the internment in camps of all Japanesse-descent civilians, the anti-japanesse-immigration law of 1925 and such are glossed over ; so is the treatment of the native indians in Canada (except in Québec, because our history book writers tend to want to prove Canada wrong

), and a lof of World War II things in Japan. When there are not enough watchdogs who care about it, or when they have no power in regard to the government (Ienaga leaping to mind), it's easy to get away with glossing over the less-glorious parts of a nation's history.
As for the original topic, I would have waited a few more days for a reaction before dropping #2, but I would most certainly have dropped #1 as well.