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Crews remove the old 'landing mat' fence near Naco, Arizona and install a new 'bollard-style' wall as part of a construction project to replace parts of the fence in Arizona and New Mexico. U.S. Customs and Border Protection estimates the cost to replace the fence at $6 million per mile.

The Tucson City Council and the Pima County Board of Supervisors approved separate resolutions Tuesday opposing the construction of a border wall along the U.S.-Mexico border. Tucson declared a policy of divesting from companies that work on the border barrier. Read more»