What, exactly, would be the basis for a Khadr libel suit? One might quibble over the fairness of the American justice system in which Khadr was convicted, where he took a plea deal in order to get out of Guantanamo, but plea deals are a fairly commonplace occurrence, including in Canada. That they're imperfect doesn't erase the legal reality that they exist. If Khadr is really worried about his reputation, he has much bigger fish to fry than concerning himself with the Conservatives' critique of Trudeau's unpopular settlement.