  We show that the data for diffractive dijet production at the Tevatron p pbar
collider are consistent with diffractive deep inelastic e p data collected at
HERA. The breakdown of factorization between the two data sets is naturally
explained by a strong tendency to populate the rapidity gap in the p pbar
diffractive process by secondaries from soft underlying interactions and by
bremsstrahlung associated with the presence of the hard dijet subprocess.
