It would seem that knowing the consequences of hate, oppression and cruelty would make people more aware, more alert to the penalties of such ways of thinking and acting. Look around, though, at the outpouring of sympathy for certain individuals whose schools of thought do not differ much from those of Hitler or Mao. Many young people (you can see them in droves at any "Rage Against the Machine" rock concert) exalt the late communist "revolutionary" Ernesto "Che" Guevara, and scores of American liberals feel nothing but adoration towards sadistic Cuban dictator Fidel Castro. If over 50 million lives lost through Hitler and Mao's philosophies of hate do not teach people not to dabble in such forms of government, is it likely that anything ever will? For our own sake and the sake of the free world, we have to remember the catastrophic results of oppressive leadership and be mindful of them, for as we all know, if we don't learn from history, it is doomed to repeat itself.…