By discussing the results of Yu et al. [Phys, Rev. E 59, 3583 (1999)] on th
e near-total transmission of laser pulses through highly overdense plasma f
oils; we show that they actually cannot explain the experimental results of
Giulietti er uf, [Phys. Rev. Lett. 79, 3194 (1997)]. Simple analytical cal
culations as well as particle-in-cell simulations support our assertion. [S
1063-651X(99)04011-8].