“…Ultimately, as border defences are beefed up, the wall lays bare an "underground vulnerability" (Stier, 2009): circumvention strategies, such as the creation of tunnel networks (McCarthy, 2009), smuggling stratagems and redrawn migration routes, (Rekacewicz, 2009, p. 12) display a certain pattern (Brown, 2009, p. 36;Guillot, 2009, p. 280). Ultimately, those strategies restructure the social fabric (Bennafla and Peraldi, 2008). Not only is the barrier no panacea but it is expensive to maintain: in the United States, a recent General Accounting Office report (GAO, 2009) estimates that repairs to the fence along the Mexican border have cost $6.5 billion over the past 20 years (Ramsey, 2012).…”