  We study the gauge glass model for the vortex glass transition in type--II
superconductors, including screening of the interaction between vortices.
{}From the size dependence of the domain wall energy we find that, in
two--dimensions, the transition is at $T=0$ both with and without screening but
the exponents are different in the two cases. In three-dimensions, we find that
screening destroys the finite temperature transition found earlier when
screening was neglected.
