![U.S. Border Patrol agent conducts a technique called "Dragging" in which imprints are cleared at the start of the shift U.S. Border Patrol agent conducts a technique called "Dragging" in which imprints are cleared at the start of the shift](/sites/default/files/photo/44_bp44.jpg)
U.S. Border Patrol agent conducts a technique called "Dragging" in which imprints are cleared at the start of the shift in order to better determine a time line of when crossings happen.
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U.S. Border Patrol agent conducts a technique called "Dragging" in which imprints are cleared at the start of the shift in order to better determine a time line of when crossings happen.