Before he left England, he was interviewed for a television programme with Malcolm Muggeridge, a known MI6 contact, and was asked whether he felt the assassination of Franco would be right. He answered that it would; when the programme was broadcast after his arrest in Spain, these comments were edited out.
Christie has had various writing and journalistic jobs including as editor of an unauthorised British edition of Pravda and Argumenty i Fakty (Arguments and Facts International) during the late years of the Soviet Union and the early years of the Russian Federation. He also worked as Production Editor with IT Matters, publishers of The House Magazine, the weekly UK journal for both Houses of Parliament, during the late 80s.
An updated version of his autobiography Granny Made me an Anarchist was published in 2004 by Scribner (UK). (Also see Part 2, The Christie File, General Franco Made Me A Terrorist
and Part 3 Edward Heath Made Me Angry
) Christie attracted criticism from some fellow anarchists for making a gestural protest vote against Labour and its war in Iraq by voting for George Galloway's Respect - The Unity Coalition in the European Parliament elections that year 
He also wrote The Floodgates of Anarchy with Meltzer. This includes an early version of the political compass.
Stefano Delle Chiaie: Portrait of a Black Terrorist, London: Anarchy Magazine/Refract Publications, 1984. 182 pages (ISBN 0-946222-09-6) (on Italian terrorist Stefano Delle Chiaie, founder of Avanguardia Nazionale and member of P2 masonic lodge, involved in Gladio's strategy of tension)
He is also the author of We, the Anarchists! A study of the Iberian Anarchist Federation (FAI) 1927-1937 (2000). 
As a publisher Christie founded Cienfuegos Press (1972) and edited the Cienfuegos Anarchist Review (1977? - 82?), Refract Publications (1982), The Meltzer Press (1996) and Christiebooks/Christiebooks.com/Read 'N' Noir. He also edited 'The Hastings Trawler' a monthly magazine which ran from December 2005 until December 2006.
Christie also translated into English the biography of Francisco Sabate Llopart Sabate: An Extraordinary Guerrilla, by Antonio Téllez Solá.