  We review the state of the art for measuring the X-ray polarization of
neutron stars. We discuss how valuable precision measurements of the degree and
position angle of polarization as a function of energy and, where relevant, of
pulse phase, would provide deeper insight into the details of the emission
mechanisms. We then review the current state of instrumentation and its
potential for obtaining relevant data. Finally, we conclude our discussion with
some opinions as to future directions.
