Yeah, it's one of those things that turns me into a screechy monkey. So I'll let others do the talking.
Via Jim McDonald on Making Light.
Via Jim Wright on Stonekettle Station.
TPMDC on Press Secretary Gibbs' response.
And Think Progress with a scan (and clean up) of the memo.
My basic take on this is what they seem to be saying is if you can't compete in the marketplace of ideas, don't engage in civil discourse.