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Nearly every checkout lane once manned by a cashier is now closed, leaving a vast, eerie expanse of empty aisles where humans used to stand.

In August upmarket north of England supermarket chain Booths got rid of self-scan altogether, while Asda and Morrisons said they would put more staff back on manned tills.

It was manned by resident lighthouse keepers until it became automated in 1996.

Recovery operations are still under way in Washington DC, after an American Airlines plane from Kansas carrying 64 people onboard collided with a military helicopter, manned by three personnel, on Wednesday night.

The Romanian personnel had played a crucial role in securing key installations, including the airport, and had manned checkpoints on the outskirts of Goma, until the latest rebel assault.