"Although cloaked in the soft language of "prevention," the report later clarifies that, "Diplomatic admonitions which are not backed by concrete action carry little weight with the regime's backers, and are unlikely to halt Assad's use of air attacks as part of a scorched-earth strategy and a way to mete out collective punishment. The US needs to be ready to pursue other means at its disposal, and to signal that readiness."" (thanks Nicholas)