【明報專訊】MAINLAND scientist He Jiankui has given an explanation for the incident of the genetically-edited babies in the International Summit on Human Genome Editing. Some experts are worried that the incident might lead to regulating bodies imposing more stringent restrictions on gene-editing research. An inventor of the CRISPR genetic scissor technology has called for a global moratorium on using the technique to create genetically-edited babies. However, given the current rivalry between China and the US in the field of high technology, the incident might have become a watershed in the contest between leading genetic engineering nations. It might give rise to more ethically controversial and secret research in biotechnology, impacting and testing scientific ethics.