Tech that helps guard the US-Mexico border
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The tech that helps keep watch over the US-Mexico border

The construction of a wall at the US-Mexican border has dominated American politics since Donald Trump first stood for election.

He now wants a barrier made from steel. But the Democrats suggest technology would be a better solution than a physical divide.

BBC Click sent Nick Kwek to Arizona to investigate what is already in place.

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  • 10 Feb 2019
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