depicted through a Euronews broadcast seen in the film. Author Patrick Crowley writes these are used to represent "the return of the colonial repressed [...] within contemporary forms of imperialism", and that they are connected to the Paris massacre and the Holocaust. The film's connection between the Seine River massacre and the Holocaust, including Vichy's collaboration with the Nazis, is through Papon. The violence of colonialism, lasting into the present, is also depicted as entering private homes and the media in "hidden" ways, according to essayist Brianne Gallagher. Radstone argues the focus on surveillance and Georges's confrontation with a black cyclist indicate the perspective is that of "the privileged and anxious white middle class". Academic Eva Jørholt argues the film illustrates how white paranoia in the aftermath of colonialism explains racial discrimination in modern France. According to film studies scholar Maria Flood, Majid is largely kept invisible, and his suicide scene confronts viewers with society's marginal people. Celik added that historical revisionism in denying colonial crimes made Caché well-timed for 2005, with the rise of Jean-Marie Le Pen and the National Front. Surveillance Professor Todd Herzog states that after the 11 September 2001 attacks, mass surveillance became commonplace. Herzog adds that Caché follows a tradition of cinema about surveillance, including Blow-Up (1966) and The Conversation (1974), but that Caché is distinctive in being "about being looked at rather than looking at something or someone". Haneke reveals life without privacy, Herzog writes. Qian He of the University of Washington writes the precise question of who is watching is the "question that haunts our daily life"; Caché is one film that explores the question, answers to which have included Google, Big Brother and God. Philosopher William G. Smith tied Haneke's ambiguity as to the sender of the tapes to philosopher Friedrich Nietzsche's writings on interpretation, quoting Haneke: "There are 1,000 truths. It's a matter of perspective". The setting of Rue des Iris has symbolic significance, as "iris" refers to a part of the human eye and to a camera diaphragm. Film studies professor Catherine Wheatley also observes a man sitting behind Anne and Pierre in the café and observing them. Lecturer Judit Pieldner observes Georges's shelves are lined with CDs, DVDs and videotapes, amounting to a celebration of media technology. The length of the tapes the Laurents receive is also stated at two hours, a nod to the typical capacity of VHS