Year after year we sing about "Peace on earth" during Christmastide. We really need to cultivate a sense of urgency about it.
In olden times when there was a war, it was a human-to-human confrontation. The victor in battle would directly see the blood and suffering of the defeated enemy. Nowadays, it is much more terrifying because a person in an office can push a button and kill millions of people and never see the human tragedy that he or she has created. The mechanization of war, the mechanization of human conflict, poses an increasing threat to peace.
--The Dalai Lama