Portfolio > Sealing our Border

With the Imperial Sand Dunes as her backdrop, New Yorker Cindi Blair, 39, walks back to her vehicle in southeastern California. The dunes, nearly 40 miles long and 10 miles wide, act as a natural barrier. So do the sand temperatures, which can hit 150 degrees in the summer. No border markers sit on the dunes, though some vehicle barriers keep smugglers from driving over the shifting sand directly onto Interstate 8.