How much is a First Class stamp? metoprolol tartrate generic name Bone asks what the motive could be for the attack. JIC are not sure, Cameron says. But he believes Assad "has been testing the boundaries" as to how the world will respond. He says inaction after the Halabja massacre in Iraq by Saddam convinced Assad he could build up an arsenal of weapons. "If there are no consequences for it, there is nothing to stop Assad doing it again and again," he says. Decades of work to establish and uphold rules of chemical warfare will be undone, he says.