The debate surrounding the extent to which America is vulnerable to both man-made or naturally occurring electromagnetic pulse (EMP) and natural geomagnetic disturbance (GMD) has become superheated. To some, the dangers these phenomena pose are believed to be existential, while others portray EMP defense advocates as mad and believe its dangers unfounded or debatable. However, Duke Energy Corp. recently became an advocate for EMP/GMD defense by releasing its plan to link multiple power stations in an effort to create resiliency for its operations and customers. What is the root of the debate? The answer, as with many emerging national security issues, is nuanced and complex.