Japan isnt really over it but theyve become increasingly focused on nuclear weapons potential after North Korea got nukes and started lobbing missiles over their heads. Their trust in the US nuclear umbrella isnt unlimited.
It's the same reason Iran, Sweden and South Korea maintain a nuclear industry despite it not being particularly economic for any of them. They all have geopolitical concerns that drive them to want to be able to manufacture a nuke at short notice.
Unlike with Sweden, South Korea and Japan we are told to believe that Iran is pursuing nuclear power as a means of being able to acquire weapons.
It's the same reason Iran, Sweden and South Korea maintain a nuclear industry despite it not being particularly economic for any of them. They all have geopolitical concerns that drive them to want to be able to manufacture a nuke at short notice.
Unlike with Sweden, South Korea and Japan we are told to believe that Iran is pursuing nuclear power as a means of being able to acquire weapons.