  We present a transport theoretical analysis of hadron attenuation in deep
inelastic lepton scattering (DIS) off complex nuclei in the kinematic regime of
the HERMES experiment. The HERMES data indicate the presence of strong
prehadronic final state interactions shortly after the elementary
lepton-nucleon interaction. The contribution of such (pre-)hadronic final state
interactions to the observed jet quenching in ultra-relaticistic heavy ion
collisions (HIC) at RHIC is estimated under the assumption that a similar
space-time picture for hadronization also holds in a hot hadronic medium. Our
results show that an additional mechanism for jet quenching must be at work for
most central collisions.
