A technothriller in the Michael Crichton vein. 9/11 was the world's worst terrorist atrocity. Julian Fox intended to change that fact. The planning would take months. The attack would take just two minutes. 9/11 had been four airliners, three buildings and 3,000 deaths. What Fox was planning would down 1300 airliners, devastate countless city centres and kill around half a million people. His method wouldn't require a single hijacker: just 23 lines of computer code. Sarah Green was an Aviation Risk Analyst in the Dept of Homeland Security. Her job was to out-think the terrorists: identify...