I'm late to this...

But Glenn Greenwald has been on it. Here he is tackling Goldfarb:

There are few concepts more elastic and subject to exploitation than "Terrorism," the all-purpose justifying and fear-mongering term.  But if it means anything, it means exactly the mindset which Goldfarb is expressing:  slaughtering innocent civilians in order to "send a message," to "deter" political actors by making them fear that continuing on the same course will result in the deaths of civilians and -- best of all, from the Terrorist's perspective -- even their own children and other family members.

To the Terrorist, by definition, that innocent civilians and even children are killed isn't a regrettable cost of taking military action.  It's not a cost at all.  It's a benefit.   It has strategic value.  Goldfarb explicitly says this:  "to wipe out a man's entire family, it's hard to imagine that doesn't give his colleagues at least a moment's pause."

That, of course, is the very same logic that leads Hamas to send suicide bombers to slaughter Israeli teenagers in pizza parlors and on buses and to shoot rockets into their homes.  It's the logic that leads Al Qaeda to fly civilian-filled airplanes into civilian-filled office buildings.  And it's the logic that leads infinitely weak and deranged people like Goldfarb and Peretz to find value in the killing of innocent Palestinians, including -- one might say, at least in Goldfarb's case:  especially -- children.

Read the whole thing. This is the kind of writing that, for me, deads this whole idea that people who write "columns" are somehow real journalists, while bloggers are just penning screeds.