I've not seen anything which really even attempts to substantiate that claim based on any valid scientific analysis, or any leaked documents, or any other generally acceptable methods of analysis.  In fact the basic logic of a particular 'event' falls quite flat a lot of times.

What I have seen are a lot of very blatant attempts at blunt force warmongering propaganda.  It's times like these when a person or group's true colors come out.  As a consequence it is a great time to separate the wheat from the chaff (or 'tares') in alt-media land.

As I've been saying since the start of this thing, keep your eyes open for a third country to start a mutually devastating war between the U.S. and China so that they can take advantage of the vacuum it creates.