  A wide energy-band neutrino beam sent over a very long baseline to a massive
detector can break the degeneracies in the neutrino oscillation parameters. It
can measure the disappearance parameters with precision and determine the mass
hierarchy. If $\theta_{13}$ is large enough the CP violating phase can be
measured with neutrino running alone and anti-neutrino running can confirm CPV
and improve the parameter measurements. Brookhaven National Laboratory is
pursuing such an experiment.
