For Misrach, Border Cantos expands on years of prior work, covering the entire length of the Mexican-American border, all 1969 miles, Pacific to Gulf of Mexico. He shows us the existing walls that bisect cabbage fields and communities, slice through individual back yards, extend mile after mile through desert and end in the Pacific Ocean. They are a hodgepodge: squat cement barriers, intimidating-towering steel divides, wire mesh, WW II Normandy-style fencing to prevent vehicles but not people. We also see the ‘digital walls’ (8000 or so cameras, 11,000 underground sensors, etc.) the ones that work.