Safety problems at a Los Alamos laboratory delay U.S. nuclear warhead testing and production

A facility that handles the cores of U.S. nuclear weapons has been mostly closed since 2013 over its inability to control worker safety risks

Part Two of a Five Part series (see Part One: "Near-Disaster")

By R. Jeffrey Smith & Patrick Malone, of the Center for Public Integrity

Next Monday: PART THREE: What happens to nuclear weapons contractors when serious accidents occur?