This thesis explores the effects of the U.S. using different definition and concepts of energy security on policy. U.S. energy policy has long been characterized as being internally inconsistent, lacking coordination, and lacking long-term strategy. The project’s overarching hypothesis is that without a definition or concept of energy security, U.S. energy security strategy will continue to be captured by special interests (both inside and outside of government), and U.S. energy policy will continue to lack cohesion and overall coordination. The paper’s three chapters follow an identical format. A research question is posed, followed by an analysis. In Chapter 1, the thesis explores the effects of the Keystone XL (KXL) pipeline. Chapt...