Spin-doctoring is the world's oldest profession, and as I undertstand it, propaganda is well-known tool of war. Napolean said, "A dozen newspapers are more to be feared than all the bayonets in France" or something like that. I found reference to this in McLuhan's "Understanding Media" but lo, not a trace of it on Google.
Who you gonna believe....?
I found several references on Google right off searching on “Napeleon quote newspapers”.
What came up was: “Four hostile newspapers are more to be feared than a thousand bayonets.”