  Heavy quark energy loss in a hot QCD plasma is computed taking into account
the competing effects due to suppression of zeroth order gluon radiation bellow
the plasma frequency and the enhancement of gluon radiation due to transition
energy loss and medium induced Bremsstrahlung. Heavy quark medium induced
radiative energy loss is derived to all orders in opacity, $(L/\lambda_g)^n$.
Numerical evaluation of the energy loss suggest small suppression of high
$p_\perp$ charm quarks, and therefore provide a possible explanation for the
null effects observed by PHENIX in the prompt electron spectrum in $Au+Au$ as
$\sqrt{s}=130$ and 200 AGeV.
