(CMB) by the Wilkinson Microwave Anisotropy Probe (WMAP) have made possible an impressively precise extraction of cosmological parameters. WMAP has also been able to measure Interstellar Medium (ISM) emission of low energy photons from dust and ionized gas in the inner regions of the galaxy. However, an excess of synchrotron radiation in the WMAP bands between 22 and 93 GHz has been observed, after a subtraction of the free-free, dust and standard synchrotron emission [@Finkbeiner2; @Dobler:2007wv]. This excess has been dubbed the WMAP “haze.”

One possible explanation of the excess is in terms of annihilating dark matter [@Finkbeiner3]. The charged byproducts of the dark matter annihilations radiate synchrotron photons in the galactic magnetic field. A neutralino from supersymmetric theories annihilating to $W^+W^-$ gives a good fit to the radial distribution of the spectrum for a dark matter halo profile scaling with a radial dependence which is slightly steeper than NFW [@FinkbeinerHooper] and a magnetic field in the few $\mu$G range. The cross-section of annihilating dark matter needed to produce the haze is consistent with what one would predict from the thermal freeze-out of the WIMP, namely $\sigma v \simeq 3 \times 10^{-26} \mbox{ cm}^3/\mbox{s}$. We urge caution, however, because recent 