Japan is planning to invest in nuclear energy, a major policy shift. The details of the investment are not available, but the decision has sparked a discussion about the cost and feasibility of nuclear energy compared to other sources. The investment in nuclear energy is expected to have significant implications for Japan's energy infrastructure and economy. The decision has been met with both support and criticism, with some arguing that it is a necessary step for energy independence and others claiming that it is a costly and risky endeavor.