Across the globe, spies gather in inconspicuous dens where they meet contacts and hold discreet conversations. This week, Intelligence Online dives into a basement near Tokyo's Hibiya Park to dine at Shunju Tsugihagi, a restaurant prized by Japanese diplomats and counter-espionage agents.
In a country that puts a premium on discretion and attention to detail, it can be surprisingly hard to find a venue that meets both these two requirements. Employees of the Public Security Investigation Agency (PSIA or Koancho, IO, 21/10/15 and 05/11/08) have found one that suits them, however, near their headquarters in the small, intimate premises
