Interview focuses on Frosch's involvement in issues related to seismic detection of underground nuclear weapons test during the 1960s. He also describes his time as director of the Advanced Research Projects Agency's Nuclear Test Detection Office from 1963 to 1965. In this position Frosch helped to manage the Department of Defense's "Project Vela Uniform," which aimed at the improvement of seismic detection capabilites. He played a major role in the realization of the Large Aperture Seismic Array (LASA).