In this talk we present an update of model predictions for the γγ total cross-section in the TeV region. The update includes preliminary
results for γγ cross-sections using the Bloch-Nordsieck model for
the overlap function of the partons in the transverse space, use of the CJLK
parametrisation of the photonic parton densities that has recently become
available and extension to the higher γγ energies relevant to the
planned CLIC collider.Comment: Talk presented by A. De Roeck at the International Linear Collider
Workshop, Jeju Island, Aug. 26-30,2002. To appear in the proceedings. 10
pages, LaTeX file, requires A4.sty, four figure