The condition of security is the coincidence between vision, landscape and power. This series of small interventions in highly controlled spaces began shortly after September 11th 2001 and explores surveillance, risk and information management. I recorded in airport security zones: inside X-Ray machines, at passport check points, immigration control, baggage claim. Geography Lessons (… cont.) is an on-going archive of these video images, queried in a series of video installations. The border device is constituted through rhythmic, spatial flows, as a field of relations between video channels.