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The U. S. government had plans to build a "virtual fence" along the U. S.-Mexico border. Costs and other factors led to led to its replacement. This article highlights the financial and technical problems associated with the project and more cost-effective ways of securing the border. Educational resources are included. (2 April 2010)
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- Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)
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