Each year, more than 30 million people flow between the U.S. and Mexico through the San Ysidro Port of Entry, the busiest land-border crossing in the world. But in 1994, Operation Gatekeeper expanded the border wall and increased the number of checkpoints. With the more recent addition of unmanned drone patrols along the border, Tijuana has become one of the most fortified border points in the Americas. In their latest long-form documentary, VICE examines life in the makeshift shantytown which is inside a dry, concrete riverbed where the Tijuana River once flowed.

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