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  • 2019-01-30 (xsd:date)
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  • Beginning in the early 1990s, we built barriers in 4 sectors at our southern border. Since each was built, those sectors have seen massive drops in apprehensions of people crossing the border illegally, including 90 percent to 95 percent decreases in the Tucson, Yuma, San Diego and El Paso sectors. ​ (en)
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