2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37807I briefly review recent progress in rare kaon decays, where I take "rare" to mean those with B < O(10^{-7}).8 pages, no figures. Uses frascatiphys_R.sty. Review talk presented at 'DAFNE04: Physics at Meson Factories', Frascati, June 7-11, 2004High Energy Physics - Experimenttext