Recent years have witnessed the increasing scope, reach and pervasiveness of surveillance. It now operates on a scale ranging from the genome to the universe. Across the spheres of private and public life and the spaces between, surveillance mediates, documents and facilitates a wide range of activities. At the same time, surveillance practices now reach beyond the corporal and temporal boundaries of life itself, no longer resting on the individual as subject, but instead falling both within and beyond it. This emphasises the porosity of such categories. Pervasive surveillance produces new articulations of power and animates flows of people, information and capital, harbouring potential for myriad opportunities as well as harms. With this growth of surveillance comes increasing complexity and paradox.

Within this milieu, these issues are particularly pronounced, controversial and prescient in relation to borders and boundaries. Surveillance practices have long been associated with shoring up territorial and categorical borders, yet in the digital age such practices become accelerated, in many cases beyond the speed of human comprehension. Highly dynamic inscriptions of difference, abnormality and undesirability are now commonplace. At the same time, surveillance practices transcend and challenge erstwhile articulations of borders and boundaries, including enabling mobility for some, uniting formerly fractured assemblies of information and the capacitating borderless passage of data.