As of 2017, about a third of the [[United States]] border with [[Mexico]] has a border barrier constructed along it.<ref name="FinancialTimes"/> About 80%<ref name="FinancialTimes"/> of that border wall was constructed due to the Secure Fence Act of 2006 (Pub.L. 109–367).<ref>[https://www.gpo.gov/fdsys/pkg/PLAW-109publ367/html/PLAW-109publ367.htm 109th Congress Public Law 367]. ''GPO''. Retrieved August 26, 2017.</ref> [[Illegal immigration]] levels decreased in the areas where the wall was built.<ref>Binder, John (August 24, 2017). [http://www.breitbart.com/texas/2017/08/24/dhs-arizona-proves-border-walls-work/ DHS: Arizona Proves ‘Border Walls Work’]. ''Breitbart News''. Retrieved August 26, 2017.</ref> | As of 2017, about a third of the [[United States]] border with [[Mexico]] has a border barrier constructed along it.<ref name="FinancialTimes"/> About 80%<ref name="FinancialTimes"/> of that border wall was constructed due to the Secure Fence Act of 2006 (Pub.L. 109–367).<ref>[https://www.gpo.gov/fdsys/pkg/PLAW-109publ367/html/PLAW-109publ367.htm 109th Congress Public Law 367]. ''GPO''. Retrieved August 26, 2017.</ref> [[Illegal immigration]] levels decreased in the areas where the wall was built.<ref>Binder, John (August 24, 2017). [http://www.breitbart.com/texas/2017/08/24/dhs-arizona-proves-border-walls-work/ DHS: Arizona Proves ‘Border Walls Work’]. ''Breitbart News''. Retrieved August 26, 2017.</ref> |