Are conservatives happier than liberals?

Here's a fun little thing to read. I look forward to your comments. Are conservatives really happier than liberals?
http://www.economist.com/world/na/displaystory.cfm?story_id=10924082&CFID=260729&CFTOKEN=53292394
After you finish grunting about what a ridiculous proposition this is, go to a WashingtonPost.com blog (http://www.washingtonpost.com/wp-srv/community/groups/index.html?plckForumPage=ForumDiscussion&plckDiscussionId=Cat%3aa70e3396-6663-4a8d-ba19-e44939d3c44fForum%3aa8bc6fd8-cf9f-43ca-99a4-05fdb4342697Discussion%3a0ad1b8de-734f-4dc8-a85d-5651bdeee313) to read what others of the lefty persuasion have suggested as apologist explanations. Goodness knows, it couldn't actually be true, could it?

Cheers (oops, I mean, "sincerely")
BRM