For more than six decades, scientists have been producing tools for basic physics that can identify antineutrinos, particles that have no electric charge, almost no mass and simply move through matter. With approaches by scientists at Lawrence Livermore National Laboratory (LLNL) and other organizations, scientists are keen to use the technology to control these subatomic particles from nuclear power plants at high ranges. A new study outlines the possible uses and restrictions of antineutrino detectors for nuclear security uses related to the reactor, spent fuel and blast monitoring. The findings would allow the researchers to warn international authorities about the illegal production of plutonium, a key element for nuclear weapons.