With great power comes great responsibility. The gene editing technology CRISPR-Cas9 has tremendous promise, from creating a malaria-proof mosquito to making our crops more pest-resistant. It can even be used on humans. But when we edit the genome, are we playing with fire? Here to talk with us about the ethics (and promise) of CRISPR is Dr. Leila Jamal, a bioethicists who is intimately aware of the ethical conundrums of CRISPR.