What you are seeing on the video is side effects of the medication. He has to take that medication to sit there and talk to you like that. ... He's not over-dramatizing. ... [Limbaugh] is revealing his ignorance of Parkinson's disease, because people with Parkinson's don't look like that at all when they're not taking their medication. They look stiff, and frozen, and don't move at all. ... People with Parkinson's, when they've had the disease for awhile, are in this bind, where if they don't take any medication, they can be stiff and hardly able to talk. And if they do take their medication, so they can talk, they get all of this movement, like what you see in the ad.

See, CBS News, that wasn't hard.

Josh Marshall also looks at another bad piece on the subject of the Limbaugh lie, this one from the Washington Post. It was later replaced by a better one with a different byline, which also managed to quote an expert:

"Anyone who knows the disease well would regard his movement as classic severe Parkinson's disease," said Elaine Richman, a neuroscientist in Baltimore who co-wrote "Parkinson's Disease and the Family." "Any other interpretation is misinformed."

Writing the news is certainly a skill, one that I'm sure is difficult to master, but it ain't rocket science -- so why are so many people doing it so badly?

Update: Josh Marshall has more -- a CNN/AP report, the headline of which belies the content.