The Latest Breaking News from The Guardian - US

Five-set tennis is under attack. Killing it would be a colossal unforced error

Shelton and Alcaraz’s 3.33am finish has renewed the debate over best-of-five tennis. Scrapping one of the sport’s great traditions would be the wrong fix

The Guardian - US · Sep 11

Remembrance ceremonies held across the US to honor victims of 9/11

Memorials and remembrances mark the 25 years since the attacks that killed nearly 3,000 on September 11

The Guardian - US · Sep 11

Mistakes, mistrust and misdirection: 25 years after 9/11, its dark legacy continues to unfold

The world’s most powerful country responded to the worst terrorist attack in its history by inflicting terror of its own – around the world, and at home

The Guardian - US · Sep 11

Texas reports first equine infection of New World screwworm on ranch horse

The flesh-eating parasite had been largely eradicated, but now authorities are racing to contain an outbreak

The Guardian - US · Sep 11

Anthropic details bad actors’ efforts to misuse its AI for bioweapons

The 154-page report comes two days after former employee Jacob Coxon resigned due to Anthropic racing to improve its models that would cause human extinction by 2030

The Guardian - US · Sep 10

US Open tennis 2026 women’s semi-finals: Rybakina beats Gauff to set up Sabalenka final – as it happened

Game-by-game report: Aryna Sabalenka and Elena Rybakina will meet in the US Open final. Ella Brockway had updates from the semi-finals

The Guardian - US · Sep 10

Trump ally resigns from post leading inquiry into alleged conspiracy against president

Joe diGenova led investigation focused on intelligence assessment that Russia interfered in 2016 election

The Guardian - US · Sep 10

More Anthropic researchers warn of AI’s perils but Musk dismisses ‘psyop’

Insiders at the firm fear tech’s advancement could cause human extinction, while others are calling their declarations of concern a ‘setup’

The Guardian - US · Sep 10

San Francisco mayor declares rent emergency as housing costs soar amid AI boom

Median rent for one-bedroom apartment in city tops $4,495 with a national median of $1,900

The Guardian - US · Sep 10

Gavin Newsom imposes strict new rules on AI, social media and chatbots for children

California governor hails ‘nation-leading’ legislation banning addictive features for users under 16

The Guardian - US · Sep 10