DtG,
No one is suggesting anything has been falsified.

Dave said, " I am also perfectly prepared to believe that it has little to do with new information, and a lot to do with political expediency. "

So they lie for political reasons, even Canadian and American presumably.
To all tell the same lie, unsupported by evidence, they would have to collude.
Their students must be outraged that their professors lie about what the original sources reveal.

Rag,
My old soldier wrote: "There was a tremendous gulf between the staff and the fighting army; the former lived in a large chateaux miles behind the front"

Of course they did, and still do!
That is how large armies fight wars.