The war ended up being so terrible for them that by the time they could get around to it the Allied propaganda claims had pretty much been accepted as truth.
The Japanese casualty and fatality information was much better, but the problem with Hiroshima and Nagasaki is that so many tens of thousands of people died from the effects of the bombs long after the end of the war. There are still people dieing!
That's the stupidist thing I've ever read. Of course they are still dying in Hiroshima and Nagasaki -- they are not immortal. It was 60 years ago. Most people dying there are in their 70s and 80s -- the normal age at which people die. You can't seriously claim that someone dying 60 years later after living to be 70 or 80 years old is dying from the effect of the bombs. It's just old age.