A primordial stochastic magnetic field will induce temperature and
polarization fluctuations in the cosmic microwave background. We outline a
calculation of the resulting fluctuation power spectra and present numerical
results.Comment: To appear in "Cosmology and Particle Physics" eds J. Garcia-Bellido,
R. Durrer, and M. Shaposhnikov, 6 pages, 1 figure, LaTeX uses aipproc.sty
(included
