What is the fine-grained topic of the following text: But on February 9, they say, in a little-reported weekly press conference, Minister for Internal Affairs and Communications, Kazuhiro Haraguchi—who has already made his own ministry’s press club open its doors—told journalists he planned to investigate the openness of press conferences in all government ministries, including the prosecutor’s office. Only return the topic.
Investigation into the openness of press conferences in all government ministries in Japan.