Al-QAEDA is determined to acquire the technology to carry out a nuclear attack on the West, a senior Foreign Office official warned yesterday.She said that Osama bin Laden's terrorist network was trawling the world for the materials and know-how to mount an attack using nuclear, chemical or biological weapons. The latest warning echoes the remarks last week of the MI5 director-general, Dame Eliza Manningham-Buller, that future terror attacks in Britain could involve weapons of mass destruction. Asked if she had any doubt that al-Qaeda wanted to obtain the materials to carry out a nuclear attack on the West, the Foreign...