Walmart expands its drone delivery program

Walmart expands its drone delivery program

More stores will offer the service allowing drones to reach 4 million households in six states by the end of the year.

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Wildlife could pose 'catastrophic' risks for power grids, experts say

Wildlife could pose ‘catastrophic’ risks for power grids, experts say

Animals can disrupt the flow of electricity to households by breaking into electrical substations.

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