Relationships start with a choice: to open up to a stranger or recoil. That choice, common as it is in encounters between individuals, is just as relevant when thinking about cultures coming into contact with one another—when friendship becomes a matter of war and peace. These meetings might produce a cacophonous event: like the 2011…

“Un art de la guerre”—this is the subtitle of the spring 2013 Guy Debord (1931-1994) documentary exhibition at the Bibliotheque nationale de France (BnF). An iconoclastic thinker, artist, and political activist, Debord scorned honors and organs of authority throughout his life and attacked what he called “the Society of the Spectacle.” Today, his manuscripts have…