The Intercept has a long article on Japan's equivalent of the NSA: the Directorate for Signals Intelligence. Interesting, but nothing really surprising.
The directorate has a history that dates back to the 1950s; its role is to eavesdrop on communications. But its operations remain so highly classified that the Japanese government has disclosed little about its work even the location of its headquarters. Most Japanese officials, except for a select few of the prime minister's inner circle, are kept in the dark about the directorate's activities, which are regulated by a limited legal framework and not subject to any independent oversight.
Now, a new investigation by the Japanese broadcaster NHK -- produced in collaboration with The Intercept -- reveals for the first time details about the inner workings of Japan's opaque spy community. Based on classified documents and interviews with current and former officials familiar with the agency's intelligence work, the investigation shines light on a previously undisclosed internet surveillance program and a spy hub in the south of Japan that is used to monitor phone calls and emails passing across communications satellites.
The article includes some new documents from the Snowden archive.