The September11 terror attacks in the US were staged to overcome disunity in al-Qa'ida, confidential computer records reveal. Alan Cullison reports on what happened after his laptop was wrecked while he was covering the combat in Afghanistan IN the autumn of 2001, I was one of scores of journalists who ventured into northern Afghanistan to write about the US-assisted war against the Taliban. After losing use of my computer in an accident, I scrawled stories by candlelight with a ballpoint pen and read dispatches to my editors at The Wall Street Journal over a satellite phone. When the Taliban's defences...