Just about every aspect of our lives involves a certain amount of risk, of course. It's all about risk management. And indeed, despite the occasional high-profile accident like last week's spill in California, pipelines in general remain very safe. One realistic alternative to transporting Canadian oil by pipeline is transporting that same oil by train or by truck. Yet both of these methods of transport are less safe than pipelines. Logically, then, we should transport as much oil as we can by pipe, and as little as possible by rail or road.