It says at the top "Wall Street Journal. Opinion Journal"
It has no byline. At the bottom it says "Please add your comments to the Opinion Journal forum."
Not sure how much more they could do to tell folks that this is an editorial. Seems like this misconception happens a lot, though. http://news.ycombinator.com/item?id=381821
It does have a byline and a dot-picture of the author, to the right of the title: "By HOLMAN W. JENKINS, JR."
So by the conventions of newspaper editorial pages, it is the opinion of the author, not the opinion of "the paper". (It is still generally the sort of opinion the WSJ has always favored.)
It has no byline. At the bottom it says "Please add your comments to the Opinion Journal forum."
Not sure how much more they could do to tell folks that this is an editorial. Seems like this misconception happens a lot, though. http://news.ycombinator.com/item?id=381821