So many reasons! * In order to get CRISPR to fit inside a virus you have to remove all the viral DNA, so it can't reproduce. * Even if you could make such

So many reasons! * In order to get CRISPR to fit inside a virus you have to remove all the viral DNA, so it can't reproduce. * Even if you could make such a virus, there would be enormous selective pressure to ditch the CRISPR proteins, and there's no pressure maintaining the CRISPR or guide RNA sequence, so it would be inactive pretty quickly * Race isn't well-defined genetically so it might not even be possible to target a group of interest * Bombs are cheap and a proven technology