We asked some of those who have family in Iran to tell us their views on the current crisis

Reza Pahlavi, the exiled son of Iran’s former shah, has called on the west to help unseat Ali Khamenei, Iran’s supreme leader.

Speaking on Friday at a news conference in Washington, Pahlavi said: “The Iranian people are taking decisive action on the ground. It is now time for the international community to join them fully.”

At 81, Jean Stewart was frustrated by her growing frailty, so she decided to get active. Now 96, push-ups, kettlebell squats and pushing a weight-loaded sledge keep her strong

I see people 30 years younger than me and they’ve given up,” Jean Stewart, 96, says. It’s not an attitude she relates to. “I like to do things for myself.”

Stewart was very active in her youth: she played hockey and softball at school and worked for the Girl Scouts for years. As she got older, however, everyday tasks became harder.

In harrowing documentary My Underground Mother, a woman finds out what really happened to her mother in the war

When journalist Marisa Fox was a young girl, her mother would regale her with stories of her own youth, all of which roiled with drama and consequence. When she was a 13-year-old girl living in Poland in the late 1930s, on the brink of the Nazi occupation, her mother told her she was pulled away from her mother and put on a boat to Palestine where she spent the rest of the second world war. As a teenager in that country, she said she became part of a radical Jewish underground group for whom she acted as a spy and a saboteur, smuggling bombs and guns which they used against the British army who ran the country at the time and who they very much wanted to force out. “I was a hero,” her mother would often boast, “never a victim.”

Stories like those both dazzled and horrified the young Fox, but by the time she was nine she began to realize that certain parts of the tale didn’t add up. “I would say to her: ‘Wait a minute, if you were born in 1935 and [the second world war] started in 1939, you would have been four, not 13,’” Fox said. “Whenever I would say that, she would say: ‘No more questions.’”

Progress of artificial general intelligence could stall, which may lead to a financial crash, says Yoshua Bengio, one of the ‘godfathers’ of modern AI

Will the race to artificial general intelligence (AGI) lead us to a land of financial plenty – or will it end in a 2008-style bust? Trillions of dollars rest on the answer.

The figures are staggering: an estimated $2.9tn (£2.2tn) being spent on datacentres, the central nervous systems of AI tools; the more than $4tn stock market capitalisation of Nvidia, the company that makes the chips powering cutting-edge AI systems; and the $100m signing-on bonuses offered by Mark Zuckerberg’s Meta to top engineers at OpenAI, the company behind ChatGPT.

From finding love to becoming a better parent … Philippa Perry, Paul Dolan, Orna Guralnik and others reveal the books that will change your life

Bruised and tainted by his relationship with Jeffrey Epstein, the Labour peer still has admirers – and the drive to go again

The BBC’s interview with Peter Mandelson had offered ample evidence of the Labour peer’s “formidable political brain”, according to Louis Mosley, UK head of the US data firm, Palantir Technologies.

An indefensible error of judgment had been made by Mandelson, Mosley said in a panel discussion with Laura Kuenssberg after the airing of some of the 30-minute interview on her Sunday morning political show, but “he is a masterful interpreter of Trump and we now live in a world where that man will determine much of what happens, and we need people who can be that translation function”.

Denmark, Norway, Sweden, the UK, France, Germany, the Netherlands and Finland will face tariffs from 1 February

What do people in Greenland think of Donald Trump and his threats to take over the island? The Guardian’s Miranda Bryant and Lauren Hurrell take a look.

Reuters estimated that thousands of protesters attended the “Hands Off Greenland” rallies around Denmark on Saturday, chanting “Greenland is not for sale” and waving Greenland’s red and white “Erfalasorput” flag.

Exclusive: Amazon, Meta and X among firms holding hundreds of meetings with people at heart of government, data shows

Tech companies have been meeting government ministers at a rate of more than once per working day, enjoying high-level political access that dwarfs that of child safety and copyright campaigners, who called the pattern “shocking” and “disturbing”.

Amazon, Meta, Microsoft and Elon Musk’s X, whose Grok AI image generator has sparked outrage with its sexualised images of women and children, were among the US tech companies holding hundreds of meetings with people at the heart of government, a Guardian investigation has found.

Draft creates ‘too broad an opt-out’ for intelligence chiefs to decide what information is released after major incident

The mayors of Liverpool and Manchester have said an amendment to the Hillsborough law should be withdrawn, saying it does not do enough to prevent future cover-ups.

The Liverpool city region mayor, Steve Rotheram, and the Greater Manchester mayor, Andy Burnham, said the amendment “creates too broad an opt-out” by allowing intelligence officials to decide what information is released to investigators after a major incident.

Supreme leader blames US for death toll and calls Donald Trump a criminal for support of demonstrations

The Iranian supreme leader, Ayatollah Ali Khamenei, has acknowledged for the first time that thousands of people were killed during the protests that rocked Iran over the last two weeks.

In a speech on Thursday, Khamenei said that thousands of people had been killed, “some in an inhuman, savage manner”, and blamed the US for the death toll. The supreme leader railed against the US president, Donald Trump, whom he called a “criminal” for his support of demonstrations, and called for strict punishment of protesters.