Sadly the human race has gone too far, too late. The atrocities committed by the various powers cannot be undone, cannot be forgiven. We already have WMD capable of obliterating the human race, for a few decades. It looks like an inevitable path as long as one country, or one race, believes it has greater rights to a good life than others, that their system is better than others… that they are the good guy and you are the bad guy. The best we can achieve is some equilibrium in power so that nobody believes his warhead will reach the other end without suffering retribution.