The original headline is "Le tout-sécuritaire ne suffira pas" which they translated as "Clamping down with law and order will not be enough" (which looks like a good translation to me). The linked Washington Post article is titled "This might be the most controversial theory for what’s behind the rise of ISIS." Yet on HN it's called, "Thomas Piketty: Income inequality is behind the rise of Islamic State." Was something changed, or did the person who posted this decide to make up something that would incite controversy?