  Recently the first single photon spectra from CERN energy heavy-ion
collisions were reported by WA80, while NA34/3 and NA38 have obtained the
spectra for dileptons with the mass up to 4-5 GeV. The production rates for
photons and dileptons significantly increase when reactions involving the $A_1$
meson are included. However, with the conventional expansion scenario, the
absolute yields are still significantly smaller than the observed ones. It may
indicate that expansion in the ``mixed state" takes much more time.
