Omar Khadr’s trial at Guantanamo is on again.  He is accused of being an illegal enemy combatant, having been involved in a firefight in Afghanistan while serving with al-Qaeda fighters when he was 15.  He is now 21, still held at Guantanamo. At the trial, Khadr’s lawyer Lt. Commander William Kuebler asked the judge what he understood to be al-Qaeda’s purpose.  The judge responded that it was to spread Islam. No plea was entered at the hearing, as Kuebler wishes to submit a series of motions.  However, after the hearing he lobbed his own bomb: The prosecution has an eye witness to the fight in which Khadr is alleged to have killed an American medic with a grenade, an eye witness whose existence the defense had only then learned about.  Under law, the defense must be informed of such matters in advance, to allow it to prepare the case. Meanwhile, Dennis Edney, Khadr’s Canadian lawyer, has been barred from the legal team representing him andwas  refused attendance at a hearing for Khadr at Guantanamo on November 8.  Mr. Edney’s difficulties are the result of a difference of opinion between him and Kuebler about how to proceed. Edney has favored focusing on preparation for the trial, while Kuebler has spent considerable time in Canada, trying to encourage the intervention of the Canadian government in the case.  Khadr was captured in Afghanistan when he was 15, engaged in fighting for the Taliban.