Mining in Kiruna, Sweden, has jeopardized the ground below a beloved church. Thanks to a feat of engineering, it is on the move.

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Rock piles have proliferated on hiking trails in recent years, irking conservationists. Stuart Cox has been applying his boot to the issue.

The service rolled out this week, prompting confusion and safety concerns. Meta, which owns Instagram, said the feature was turned off unless users activated it.

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