Listen now (7 mins) | "Chinese researcher claims first gene-edited babies". On November 26, 2018, the world was stunned by this scoop from the Associated Press. Dr He Jiankui, the person behind the experiment, was sentenced to three years imprisonment and a three-million-yuan fine shortly after the news broke. The entire science world was divided into two poles following the debates on the ethical and moral issues of "gene-edited babies". So, what exactly is gene editing? And what is the history behind this controversial discovery? Let's find out.