In the high-altitude desert shared by Chile and Bolivia lies a remote stretch of dirt road that marks their sparsely patrolled border. Once military patrols are out of sight, illegal migrants dash across the road at all hours of the day, and continue their journey north from Pisiga, in Bolivia, or south from Colchane, in Chile. This frontier is popular for both illegal migration and contraband smuggling and, due to the extreme climate-based survival challenges, is called the “corridor of death” by some immigration officials. “We saw a huge number [of illegal migrants] passing through in June and July this year,” Benjamin Choque, a Bolivian immigration officer, told The Epoch Times. Choque explained that those without documents have a hard time entering Bolivia legally because the nation requires a negative PCR test that’s no older than 72 hours. He said the tests are impossible to obtain in most remote Chilean …