Who wrote the counterpoint to Dershowitz in the book 'torture'

In the book torture Alan Dershowitz writes in favor of torture. I read parts of the book several months ago and remember that another author in the book systematically disproved all of Dershowitz’s claims. But I can’t remember the name of the author who wrote the counterpoint since I don’t have the book with me. Does anyone know the name of the author? He/she was the one who addressed the fact that a ticking time bomb situation had a next to 0% chance of happening, and that by keeping torture illegal the only time americans will engage in it is if we have a true ticking time bomb situation since they’d themselves suffer consequences fromt committing torture. Can his/her article be found online anywhere?