US-Mexico border wall raises environmental concerns

The first formal step towards building a border wall between the United States and Mexico will soon be taken. A solicitation order is expected, inviting companies to submit plans.

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    The first formal step towards building a border wall between the United States and Mexico will soon be taken.

    A solicitation order is expected, inviting companies to submit plans.

    But environmentalists are concerned that such a structure would harm the landscape.

    Al Jazeera’s Heidi Zhou-Castro reports from Big Bend, Texas.


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