Extra Hasty Crispr

For the past few years, a new scientific tool known as CRISPR-Cas9 has been hailed as the future of medicine. But a new study, published in Nature Methods , found that using CRISPR-Cas9 to edit a genome can result in hundreds of unintended mutations being introduced. Is this tool still the future, or should we slow down and pump the brakes on gene editing? Jeff and Anthony discuss.