A comment by Akira Igata, Director of ESRP, Research Center for Advanced Science and Technology, The University of Tokyo, was published in the Mainichi Shimbun (13/01/2023). Amid the government’s efforts to develop a domestically-produced ‘Sun Flag Cloud’ under the guise of economic security, he pointed out that the ‘Sun Flag Cloud’ is not a priority issue in terms of economic security.
You can read the article here (in Japanese).