World
British prosecutors have charged a 65-year-old doctor living in north London with crimes tied to the 1994 Rwandan genocide, the first such case brought in the United Kingdom. Dr Vincent Brown, formerly known as Vincent Bajinya, was arrested in London and appeared at Westminster Magistrates' Court on 22 September. He faces one count of conduct ancillary to genocide and six counts of conduct ancillary to murder as a crime against humanity, and prosecutors say he oversaw six killings. He entered no plea. Chief Magistrate Paul Goldspring granted bail on a 25,000 pound security paid by his family and sent the case to the Old Bailey, where Brown is due on 9 October. Prosecutors said they want to challenge the bail decision. UK law allows British courts to try genocide and crimes against humanity wherever they were committed.
Associated Press
Politics
The Pentagon has told Congress that the war with Iran has cost $45.1 billion so far. Officials put war costs at $43.6 billion as of 3 September, plus an extra $1.5 billion for fuel, according to two sources familiar with the briefing. The figure is not a full accounting. It leaves out the cost of repairing damaged bases and buildings, and lawmakers did not get the detailed breakdown of indirect operating costs they had asked for. The estimate landed as fuel prices stay high and the midterm election campaign turns on the cost of living. Congress still has to decide how to fund the next phase of operations, and the price tag is expected to keep climbing.
CNN
Business
The OECD has flagged surging government bond yields as a major concern, warning that higher borrowing costs are tightening public budgets just as growth slows and inflation picks up again. The Paris-based group expects the global economy to grow 2.9% in 2026 and 3% in 2027. Annualised growth cooled from 3.6% in the second half of last year to 2.6% in the first half of 2026. G20 inflation is forecast to average 4.1% this year before easing to 3.6% next year. Secretary-General Mathias Cormann said the buffers that absorbed the Middle East energy shock are being used up. The OECD also expects the US and European central banks to raise interest rates again.
Financial Times
Technology
About 20 million AI accelerator chips are already running in data centres worldwide, and the count is doubling roughly every nine months, according to Epoch AI research reported by The New York Times. At that pace the fleet would reach around 200 million chips by the end of 2028. Hundreds of data centres are under construction. The constraint is shifting from chip supply to power, materials and construction: data centres already draw roughly as much electricity as Germany, and that figure is expected to quadruple by 2030. New York State has imposed a one-year moratorium on new data centres.
The New York Times
Science
A Stanford Medicine-led study published in Nature Neuroscience on 18 September reports that the human brain forms from two separate populations of progenitor cells rather than one. The forebrain and midbrain come from one group, while the hindbrain develops from a distinct second group. The team traced the same two-origin pattern across 550 million years of evolution, finding it in chickens, zebrafish and acorn worms. Jellyfish, which split from the human line 600 to 700 million years ago, carry two nervous systems at opposite ends of the body. The authors say the finding may help research into neurological disease.
Stanford Medicine
Sports
New York Giants quarterback Jaxson Dart will have season-ending surgery on his left knee after an MRI revealed damage to his meniscus, MCL and PCL. The 23-year-old was hurt on the opening possession of Monday night's 28-6 loss to the Los Angeles Rams. His ACL is intact and doctors expect a full recovery, but the meniscus injury is the most serious of the three. Jameis Winston, who finished the Rams game, takes over at quarterback. The injury adds to a run of quarterback problems in the opening weeks of the NFL season, including Washington's Jayden Daniels.
Reuters
Health
A study in Nature Medicine used a natural experiment created by the US switch from the live shingles vaccine to the recombinant one. Researchers matched 36,460 adults aged 60 and over vaccinated in 2018, when 93.5% received the recombinant shot, with the same number vaccinated in 2017, when 98.6% received the live vaccine. Over up to seven years the recombinant group had a 9% lower overall cardiovascular disease burden, with heart failure 12% lower and ischemic heart disease 10% lower. The link weakened over time, and the study cannot prove cause and effect.
Nature Medicine
Environment
Nepal's prime minister, Balendra Shah, is expected to press for climate compensation when he addresses the UN General Assembly on 24 September. The appeal follows the 26 August disaster in Langtang National Park, where a partial glacier collapse sent a debris flow nearly 100 km down the Lende Khola and Trishuli rivers. More than 1,000 people are confirmed dead, hundreds are still missing, and hydropower stations were destroyed. Nepal's glaciers have lost close to a third of their ice volume in about three decades. The country is seeking money from the Fund for Responding to Loss and Damage.
Al Jazeera