Jared Davidson: Subversion and censorship in NZ

Privacy issues aren't just a feature of the digital age; a new book by labour historian, Jared Davidson, hows how pervasive military censorship was in the wartime years from 1914 to 1920. Dead Letters, on censorship and subversion in New Zealand traces how Postal Service seize letters and sealed them away, not to be read for the next hundred years.