CNN: The tragedy of the train derailment in Lac-Megantic, Quebec, has brought home just how small our world has become. Oil that was drilled in North Dakota's Bakken oil fields is loaded onto rail cars and passes through a small Canadian community and shatters their world in an instant. All my thoughts and best wishes go out to the families and emergency responders in the midst of this human and environmental catastrophe.
Everyone is touched by this man-made disaster -- 20 killed, 30 missing -- because...