  In light of the recent CDF report on the excess in the Wjj channel, we
analyze (non)supersymmetric U(1)_B x U(1)_L model, interpreting the dijet peak
as a leptophobic U(1)_B gauge boson. If this excess is confirmed, it has an
interesting implication for the baryonic cold dark matter (CDM) in the model:
there should be light CDM with a few GeV mass, and direct detection cross
section at the level of a few x 10^{-2} pb.
