Birmingham's piece IMO is eminently sensible. Here's an extract:
The three commentators quoted in Cut and Paste are also drawing (or redrawing) well marked lines in the sand regarding their respective positions. Eliot Cohen in the Washington Post (for the full article see here) gets really worked up about the attack: "Yes, It's Anti-Semitic" is the headline in the original . Michael Ledeen from the National Review Online (full article here) writes in similar vein: "This is anti-Semitism in the grand tradition".
Mark Mazower in the Financial Times (full article only available on subscription) takes the contrary view, which is closer to mine:
I like his distinction between serious critique and crackpot ravings. I've heard some comments which tend towards the latter at question times at Robert Fisk presentations, but that doesn't make me think that Fisk or the authors of the paper should be silenced.