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Hard-line Republican candidates were able to fire up their base by denouncing illegal immigrants and urging the construction of bigger border fences.
CNN: Highlights from the world's press
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Money would be used to fortify border fences, boost patrols, and acquire surveillance technology from the Department of Defense -- including drones and drone pilots.
CNN: Boston terror fears raised at Senate immigration hearing
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What they wanted was not anything that looked like an amnesty but tougher border patrols, and higher, longer fences along the border.
BBC: Immigration makes election bow
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An estimated 3, 600 people have died crossing the U.S. border since the fences went up.
NPR: San Diego Fence Provides Lessons in Border Control
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But our borders are just too vast for us to be able to solve the problem only with fences and border patrols.
WHITEHOUSE: President Obama on Comprehensive Immigration Reform
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In more populated stretches of the 2, 000 mile (3, 200km) border, in California and Texas, long fences have been built and extra Border Patrol agents deployed.
ECONOMIST: Mexico's northern border
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When the Republicans ran Congress they rejected liberal immigration reform that George Bush supported and instead treated hard-working immigrants as criminals by funding security fences along the border with Mexico.
ECONOMIST: Taking grain to market
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Four security fences and a team of border patrol vehicles deter improvised river crossings.
FORBES: Why Is Mexico's Murder City Attracting Investors?
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The bill calls for miles of fences, thousands of new border guards, a secure identity card for immigrants and a new obligation for employers to verify that anyone they hire is legally entitled to work.
ECONOMIST: The latest attempt to fix the immigration system is stuck
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From Bristol, a state-designated music trail known as the Crooked Road zigzags through the wooded hillsides and meadows of South Virginia, past white picket fences and trout-filled creeks along the North Carolina border.
BBC: America��s country music heartland
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In between the two main fences is 150 feet of "no man's land, " an area that the Border Patrol sweeps with flood lights and trucks, and soon, surveillance cameras.
NPR: San Diego Fence Provides Lessons in Border Control