National Archives at College Park/Wikimedia Commons
Dylan Spaulding
Dr. Dylan Spaulding writes about nuclear weapons and the policies that can reduce the threat they pose.
National Archives at College Park/Wikimedia Commons
Dylan Spaulding
Michael Smith/Getty Images
Douglas Miller/Keystone/Getty Images
National Archives at College Park via Wikimedia Commons
Cristina Gottardi/Unsplash
Library of Congress
Lawrence Livermore National Security/Wikipedia