The author of the JFK piece in Vanity Fair was briefly misidentified as Tad Friend. The actual author was David Friend. FCP regrets the error.

For the record: Sorensen told me after this post that he was flattered, but not responsible for any of Barack's cadences. However, Adam Frankel, 26, who helped Sorensen with his memoirs, is part of Barack's speechwriting team. As Newsweek explains here: http://www.newsweek.com/id/84756/output/print

Arthur Gelb corrects the record:
Abe Rosenthal, Irving Kristol, Bill Buckley, Teddy White,Oz Elliott, and Gelb were members of the "Rosenthal for President" lunch club (whose alternate name was ("Buckley for President.") Bernie Kalb was not a member.
FCP regrets the error.

Arthur Sulzberger thought my summary of his response did not do it justice.
For the record, here is all of what he said:

"The 'Op' in 'OP-ED' stands for more then just that the one page is
opposite from the other. It speaks, too, to our desire for diverse viewpoints. For
history's sake, please go back and review what was said about Bill Safire
when he came on board. We still have Krugman and Rich; Herbert and Collins;Dowd and ... well, you get the point. And even more, we still have our own, vibrant editorial voice. And now we have a new weekly columnist who expresses a very different point of view in a full throated way. Given that we're a paper that believes in vibrant political discourse, that's a good thing.
Will you agree with him? No. And that's the point. If all we do is offer a
single point of view, we are failing in our mission to provide intellectual
diversity. Let me add one last word. We bring Bill Kristol on board after a
long and thoughtful search through the ranks of strong conservative voices. Paired with Brooks, I think we now offer a greater range and depth than we have since the once vilified and now sainted William Safire graced our pages.
So Happy New Year, my friend. Here's to vigorous, open debate and
discussion. It is, after all, what democracy is about."