  We present a systematic calculation of the coherent multiple parton
scattering with several nucleons in lepton-nucleus and hadron-nucleus
collisions. We show that in l+A reactions coherence leads to nuclear shadowing
in the structure functions and a modification of the QCD sum rules. In p+A
reactions we evaluate the nuclear suppression of single and double inclusive
hadron production at moderate transverse momenta. We demonstrate that both
spectra and dihadron correlations in p+A collisions at RHIC are sensitive
measures of such dynamical nuclear attenuation effects.
