In response to "Obama ignores facts, pulls plug on Keystone" (Nov. 11) by Cal Thomas:
A fact that Obama did not ignore was the poor safety record of Enbridge, the company that wanted to build the pipeline. It is responsible for the largest oil spill on land in U.S. history.
The spill happened in Michigan in 2010 after a 6-foot break in the pipeline. Enbridge had instrumentation at the source that indicated the leak, but they weren't watching it. It took a phone call from Michigan to get it shut off.
It's true that the oil will be delivered by rail, and spillage may occur due to train wrecks, but the quantity is unlikely to be anywhere near that from a broken, unattended pipe. Also, it will be on the ground, not buried in the underground aquifer.
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