Infrasonic data are typically used in the study of phenomena at long ranges, due to reduced atmospheric attenuation below ∼ 16 Hz. At these frequencies long range connotes source distances > 100 km. This fits right in with the nuclear treaty verification work that employs a fair number of scientists, engineers, field technicians and students at the GI. However, our infrasound research group has made significant progress in the application of acoustic signal processing to infrasonic data at ranges < 10 km. In late summer 2007 a few of us went out to the field to put one such application to the test. The experiment was called Explosion Localization Via Infrasound (ELVIS). In this talk I'll review the background leading up to the experiment and stress the importance of always having a set of "hip pocket" slides available for potential customers.