The headline pertains to the issues faced in evaluating the US investment projects in Japan. The concern lies in providing resistance-free options for potential investments while ensuring domestic security and sustainability. The 'who' primarily involves US investors and Japanese agencies. The 'where' and 'when' depend on specific instances of investment. The 'why' and 'how' revolve around the need for robust analysis systems and policy reforms.

Japan, being one of the world's leading economies, hosts many foreign investments. Among these, US-based projects hold substantial value. Thus, effective scrutiny becomes significant - balancing domestic, environmental, and economic concerns. This is not just a matter of economy in Japan; it often emerges as a political discourse where national interests and foreign diplomacy are brought into question.

In the US or EU, foreign investment scrutiny is often similar, assessing benefits against potential threats to national interests or security. However, the intensity and focus of scrutiny may differ due to varying economic dependencies, national strategies, and regulations.