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Keystone XL Pipeline

Keystone rejection makes U.S. vulnerable

Neither the Obama administration nor The Sun have any concept of U.S. energy security and the potential danger from supply disruptions ("Au revoir, Keystone," Nov. 9). In 1942, the United States was self-sufficient in crude supply and refining capacity with a large portion of that capacity in the Northeast — supplied from Texas by coastal tankers —- as was the industrial production capacity, which used a large supply of fuel oil.

In 1942, the German submarine Wolf Pack sunk most of the coastal tanker fleet and restricted the war efforts. Unable to protect the...