  It is shown that the absorption of photons at energies > 1 TeV (much higher
than the mass of the Higgs boson ~ 100 GeV) is a multi-channel one as opposed
to the purely electron pair like absorption at lower energies. The observation
on muons and gamma rays from Cygnus X-3 point source at these energies (1 TeV
to 10 TeV) is quantitatively accounted for. The expected multi-channel
cross-sections of photons in air as a function of energy is given both for
Coulomb dissociation and nuclear absorption upto limiting energies of 10^9 GeV.
