Airports are in chaos as a terror plot is uncovered. Suicide bombers bring cities to a standstill. Schoolchildren are massacred in their classrooms. The rules of war are changing. Across the globe, terror strategies strike cold fear into the hearts of ordinary citizens, as innocent people become legitimate targets for bloodshed. George Bush and Tony Blair have launched their counter-attack, but for many the 'war on terror' throws up troubling questions:...