The DUNE/LBNF program aims to address key questions in neutrino physics and astroparticle physics. Realizing DUNEs potential to reconstruct low-energy particles in the 10-100 MeV energy range will bring significant benefits for all DUNEs science goals. In neutrino physics, low-energy sensitivity will improve neutrino energy reconstruction in the GeV range relevant for the kinematics of DUNEs long-baseline oscillation program. In astroparticle physics, low-energy capabilities will make DUNEs far detectors the worlds best apparatus for studying the electron-neutrino flux from a supernova. This will open a new window to unrivaled studies of the dynamics and neutronization of a stars central core in real time, the potential discovery of the neutrino mass hierarchy, provide new sensitivity to physics beyond the Standard Model, and evidence of neutrino quantum-coherence effects. The same capabilities will also provide new sensitivity to `boosted dark matter models that are not observable in traditional direct dark matter detectors.
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