  We report on recent calculations of the medium-induced gluon radiation off
hard partons. The employed path-integral formalism reduces in limiting cases to
the main ``jet quenching'' results of the existing literature. Moreover, it
describes destructive interference effects between medium-independent and
medium-induced radiation amplitudes. These affect the angular distribution and
$L$-dependence of the medium-induced gluon bremsstrahlung spectrum
significantly.
