Polarization phenomena in N-nucleus scattering

Polarization observables will play an increasingly important role in future studies of nuclei with medium-energy (ME) protons. This may be stated without much chance of future contradiction. Beyond that, however, it is impossible to foresee. There are many issues in nucleon-nucleus physics that could be dramatically affected. Current examples of polarization experiments are presented, and two future experiments in which qualitatively new information will be obtained are discussed. The emphasis here is on physics that cannot be obtained from other hadronic or electromagnetic experiments