Slanted News, Slanted Viewers 0
(snip)
Ross thinks this is because partisans often feel the news lacks context. Instead of just showing a missile killing civilians, in other words, partisans on both sides want the news to explain the history of events that prompted — and could have justified — the missile. The more knowledgeable people are, the more context they find missing.
Update: 7/20/2006: On the Media interviewed the author of the story this week; here’s the blurb from their website. I’ll post a link to the transcript when it becomes available: