New cybersecurity laws come into power in UK banning some most easily-guessed password combinations. Deadly US tornadoes: latest. Pope’s plea to young: hang up smartphones and meet IRL. World’s largest salmon ‘had tusks’.

Also in this episode:

• Ex-mountain biking world champion Reece Wilson on crash concussion risk
• British hypersonic missile ‘in service by 2030’
• This material stores greenhouse gases
• London Zoo appeals for public’s memorabilia to join Darwin

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