Abstract
In December of 2010, the US Presidential Commission for the Study of Bioethical Issues published a report entitled "New Directions: The Ethics of Synthetic Biology and Emerging Technology," signaling the US government's intention to facilitate comprehensive efforts on synthetic biology, including safety, etc. In Japan, however, the government has never examined this issue extensively. This treatise reviews the content, background and progress of the US Report. Furthermore, the necessity of countermeasures in Japan, such as regulation, is considered from the perspectives of safety, security and ethics.