The single most important freedom your grandfather fought to protect in WW2 was the Western legal concept of the Rule of Law.  The Rule of Law is what makes the West glorious and most of the rest of the world awful.
Really you should be furious that the holders of the highest political office in Canada (Harper and Chretien) were so determined to deny an individual access to due process.  In essence, in that instance, they were acting just as Putin or any other dictator would.