Those British interests included our right and duty to secure the defence of our people against terrorism. They also included the defence of our people against Libyan state-directed terrorism. To answer the question of the hon. Member for Monklands, West (Mr. Clarke), the action had to be proportionate to the threat. As my right hon. Friend the Secretary of State for Defence explained in his interview on Monday, it was a difficult question. [Interruption.] Opposition Members may laugh, but it would have been profoundly serious if this question had not been seriously considered, and in earnest. And it was.