  I extend the two gluon exchange picture of elastic scattering, known as the
Low-Nussinov or Subtractive Quark Model, to predict cross sections for double
pomeron exchange processes. In particular, I calculate p p-bar to p p-bar q
q-bar where the q q-bar partons appear as jets separated from the final p and
p-bar by large gaps in rapidity. The predicted cross section is large enough
that this process should be observable at the Fermilab Tevatron and at the
Large Hadron Collider. It can be distinguished from the background of ordinary
jet production by the absence of particles produced in the gap regions.
