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 Group calls for double fence along MexicoA new North Carolina-based group has begun an effort to persuade presidential and congressional candidates to sign a pledge to build a double-edged wall along the U.S.-Mexican border by the end of 2013. This week, the group, called Americans for Securing the Border, put up a website and plans to shortly begin urging candidates to take the pledge. ...&#160;Lire la suite :http://www.newsobserver.com/2011/10/10/1554092/group-calls-for-double-fence-along.html