We elaborate a theoretical approach to the dynamics of nuclear transpa
rency in hard nuclear reactions, based on the hadronic eigenstate expa
nsion of the correlator of the hard scattering operator. It appears th
at the kinematical treatment of the effects related to Fermi motion is
of great importance in exclusive measurements; this is relevant for t
he interpretation of the BNL experiment on hard (p, 2p) reaction. Colo
ur transparency manifests itself even at moderate momentum transfers i
f one chooses the missing momentum of the struck nucleon by appropriat
e kinematics. In general, the role of the Fermi motion is found to be
crucial; without it, any effect of anomalous nuclear transparency woul
d be impossible.