Might be just me, but I don't like this trend. I'm seeing "the chinese" & "hacking" used too much together without proof more often than not. Almost as if they are being made into the next boogeyman to be afraid of.
Get used to it, you're going to be seeing it for what is likely a few decades at least. We need an enemy. The Chinese are the new Red Army; something to blame Western problems on.
That sounds really ignorant. DDoS is not a situation of east versus west.
In case you've missed the memo, they're threatening all of their neighbors outright with kinetic military force. Japan is no trivial country to threaten force against, so the diplomatic climate has changed and more information is being shared publicly in anticipation of an outright military conflict.
There are conflicting interests between individuals that lead to physical fights and the same applies to sovereign nations whose interests run contrary.
It was, at least in some political magazines.
http://www.heise.de/tp/artikel/7/7551/1.html (German article from 2001)
References: http://www.wired.com/politics/law/news/2001/05/43443
And besides Internet, just for the record https://www.fas.org/irp/news/1999/06/990602-275397.htm