  The extraction of neutrino mixing parameters and the CP-violating phase
requires knowledge of the neutrino energy. This energy must be reconstructed
from the final state of a neutrino-nucleus reaction since all long-baseline
experiments use nuclear targets. This reconstruction requires detailed
knowledge of the neutrino reactions with bound nucleons and of the final state
interactions of hadrons with the nuclear environment. Quantum-kinetic transport
theory can be used to build an event generator for this reconstruction that
takes basic nuclear properties, such as binding, into account. Some examples
are discussed that show the effects of nuclear interactions on observables in
long-baseline experiments
