Fifteen years after Fukushima reshaped Japan's relationship with the atom, Tokyo has formally chosen expansion over retreat. Confronting a projected power shortage in the 2040s as aging reactors reach the end of their operational lives, the Cabinet has approved a plan to build two to five new reactors by that decade — the first such commitment since the 2011 disaster. The decision reflects a quiet but consequential reckoning: that the mathematics of energy security and decarbonization have, for now, outweighed the weight of collective trauma.