In this interview, David Zierler, Oral Historian for AIP, Interviews Robert Kuckuck, director emeritus of Los Alamos National Laboratory. He recounts his childhood in Wheeling, West Virginia, and he describes his working-class upbringing and how he would understand pursuing an advanced degree as very much an against-the-grain endeavor relative to his roots. He describes the circumstances leading to his undergraduate education at West Liberty State College and how he settled on physics as a major. Kuckuck discusses his work in the library for Battelle, and the arrangement he made to pursue a graduate degree in physics part time at Ohio State. He describes his work there under the direction of K. Narahari Rao and how he came to work at the Radiation Laboratory at the University of California. Kuckuck explains what he learned about nuclear weapons and research early in his career at Livermore, and how he integrated his lab work in the L-Division with his graduate studies. He describes some of the tensions surrounding working in a military research environment in the midst of the Vietnam War. Kuckuck describes in broad detail his four decades in research and administration at Livermore, including some of the key collaborations both within government and in the private technical sector. He describes his work at the Nevada Test Site and the challenges inherent in underground nuclear testing. Kuckuck reflects on the competitive relationship between Livermore and Los Alamos and the nature of his advisory work on verification issues and SDI research in Washington during the late stage of the Cold War. Kuckuck describes the impact of the end of the Cold War on nuclear testing and the creation of the NNSA. At the end of the interview, Kuckuck explains the complex factors leading to his brief directorship of Los Alamos, and he reflects on his efforts to maintain the viability and reputation for cutting edge research at the lab over the long term.