  I describe possible ways to discover hard double pomeron exchange (HDPE) with
the existing detectors at the Fermilab Tevatron, by using the small-angle
``luminosity'' counters as a veto. Estimates of the cross sections and
backgrounds are made. In addition to the intrinsic importance of HDPE, its
observation would be useful for calibrating the detectors, and for estimating
the ``survival probability'' of rapidity gaps.
