The hon. Gentleman is right to express concern and anger not only about the use of chemical weapons but about their increasing use. We think that they have been used on perhaps four occasions since the turn of this year. If the use of chemical weapons once again becomes the norm in war, that will go against a century of a united response against them by the world. I took part in the recent conference in Paris led by the French Foreign Minister and the United States Secretary of State to counter activities in the UN, where the joint investigative mechanism has been vetoed on three occasions, by trying to create some other mechanism. We will continue to work through the UN to ensure that the international convention on chemical weapons once again becomes properly effective.