  Recent neutrino oscillation results have shown that the existing long
baseline experiments have some sensitivity to the effects of CP violation in
the neutrino sector. This sensitivity is currently statistically limited, but
the next generation of experiments, DUNE and Hyper-K, will provide an order of
magnitude more events. To reach the full potential of these datasets we must
achieve a commensurate improvement in our understanding of the systematic
uncertainties that beset them. This talk describes two proposed intermediate
detectors for the current and future long baseline oscillation experiments in
Japan, TITUS and NuPRISM. These detectors are discussed in the context of the
current T2K oscillation analysis, highlighting the ways in which they could
reduce the systematic uncertainty on this measurement. The talk also describes
the short baseline oscillation sensitivity of NuPRISM along with the neutrino
scattering measurements the detector makes possible.
