U.S. Navy divers scour the seabed for debris after the 200ft tall device was shot down by F-22 fighter jets. Crypto: ES tech reporter Simon Hunt on future of UK’s digital pound, dubbed ‘Britcoin’. Safer Internet Day: Improving online security and new parents’ child-tracking app for Apple Watch.

Also in this episode:

• AI Asmongold: Twitch World of Warcraft streamer wowed by virtual twin
• Study reveals vaping ‘damages immune system’
• Titanosaur: Bone cast of world’s biggest dinosaur coming to Natural History Museum
• Hear sounds of crashing Arctic icebergs, whales and underwater polar audio
• Playing golf is one of ‘best ways for over-65s to stay healthy’

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