In that case, Scalia made the hairsplitting distinction between technology that picks up information that is out in public view and technology that reveals information that otherwise could only be obtained with eavesdropping equipment inside the house.

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Much of this decision process about whom to short list may have been informed by digitally available information, peer-set company stories, and relevant industry influencers with a point of view on technology solutions.

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America's army is already using the technology to analyse interactions between people in other countries, with a view to including this information in programs designed to teach cultural differences to soldiers stationed in foreign lands.

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In Zambia, women-led technology organisation Asikana Network is currently mapping all similar organisations across Africa with a view to sharing information.

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