It is telling and troubling that the annual climate talking-shop’s outcome did not even mention fossil fuels. We ask whether the COP process is still fit for purpose. Cryptocurrencies could be heading for an almighty fall: what would they take down with them? And the revealing vowels and diphthongs of whale communications. (Hear much more on animal communication in our series on “Babbage”: part 1 asks whether animals truly have language, and part 2 whether AI could translate it.)

Additional audio courtesy of Project CETI.

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Britain’s home secretary Shabana Mahmood proposed a big shift in immigration policy this week. Our correspondent explains Labour’s reforms – and the reasoning behind them. Why military spy balloons are making a comeback. And celebrating historian Gillian Tindall, who illuminated ordinary lives to bring the past to life.

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Pentagon officials are meeting President Volodymyr Zelensky in Kyiv to discuss a Russia-US peace proposal Ukraine had no part in writing. That merely adds pressure as a giant corruption crisis is already embroiling top officials. Fifty years on from the death of Franco, our correspondent assesses how much Spain has changed. And should you date your boss?

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Muhammad bin Salman’s first visit to the White House in seven years earned the Saudi crown prince new weapons, giant tech deals and a burnished reputation. Our correspondent explains Trump’s warm welcome. Why gay rights in Hong Kong are going backwards. And how snail farms help Britons dodge tax.

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Sheikh Hasina, Bangladesh’s former prime minister, has been sentenced to death for crimes against humanity. The country is at a pivotal moment as it heads towards parliamentary elections next year. Donald Trump hopes tariffs will return furniture making to America. And why English speakers use their alphabet so oddly.

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This weekend, thousands of people protested in Mexico City about violent crime. But our correspondent notes that the government has had some success in confronting drug gangs and cutting homicides. Three years ago Japan’s former prime minister Abe Shinzo was assassinated. Now his killer is on trial. And celebrating the life of the bomb-disposal mastermind Peter Gurney.

For “The Weekend Intelligence”, our Mexico bureau chief Sarah Birke recently visited the Mexican city of Culiacán, capital of Sinaloa state, which is suffering a brutal “narco-pandemic”. Subscribers can listen here.

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After two years of war, over 80% of the buildings in Gaza have been destroyed. Our correspondent assesses various plans for reconstruction. Do large lay-offs in American firms mean AI is coming for white-collar jobs? And remembering James Watson, the controversial scientist who discovered the structure of DNA.

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Last night Donald Trump finally managed to end the longest federal government shutdown in history. But, amid a new release of emails relating to convicted paedophile Jeffrey Epstein, the political storm continues. Why Airbnb is searching for new beds in new markets. And the amazing role of lead poisoning in humanity’s success.

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