Happy Saturday. It was a heavy news week, with smoke in the air over North America in more ways than one, so grab a coffee and let me walk you through the ten stories that actually matter today.

1. Trump threatens new Canada tariffs over fires sending ‘filthy’ air into US cities. More than 800 wildfires are pushing smoke into Toronto, New York and the Midwest, and the fight over who is responsible is now spilling into trade policy between two close allies.
2. US denies Iranian claims it hit civilian infrastructure in latest strikes. The renewed conflict keeps escalating despite last month’s initial deal, and each disputed strike makes a lasting ceasefire harder to reach.
3. Many Ukrainian soldiers outraged over removal of defence minister, troops tell BBC. Zelensky’s decision to fire the popular Mykhailo Fedorov has sparked street protests and now open criticism from the front lines, a rare crack in wartime unity.
4. Magnitude 7.3 earthquake strikes off Mexico coast. A quake this size is serious anywhere, and officials recorded small tsunami waves in Chiapas while damage assessments continue.
5. At least two dead in Texas floods ravaging same area where campers died. The same Hill Country region that lost more than 130 people last year is underwater again, raising hard questions about warning systems and rebuilding in flood zones.
6. China hits out at British Steel nationalisation. The UK took the Scunthorpe steelworks into public hands to protect what it calls a vital national capability, and Beijing’s angry response shows how industrial policy is becoming a front in great power tension.
7. Trump alleges China meddled in 2020 election and questions voting security ahead of midterms. With November approaching, claims like these set the stage for disputes over results, which is why election officials are watching so closely.
8. Google delays Gemini 3.5 Pro as Apple sues OpenAI in a wild week for AI. Alphabet shares dropped more than 4 percent on the delay, a reminder that the frontier AI race now moves markets and courtrooms alike.
9. Trump Media to sell instant access to ‘market-moving’ social posts. Selling traders a faster feed of presidential posts blurs the line between governing and profiting from it, and Wall Street is paying attention.
10. How these twins’ rare growth disorder could provide the key to preventing cancer. People with Laron syndrome get cancer far less often than the rest of us, and researchers think understanding why could open a new path to prevention.

That’s the roundup. All credit to the reporters at the BBC, NPR, Tech Startups and the other outlets linked above. See you tomorrow.