Your World Tonight

It’s been 25 years since one of the darkest days in American history. Nearly 3,000 people were killed in the 9/11 terrorist attacks in New York, on the Pentagon -- and in Shanksville, Pennsylvania. Today was a day of sombre ceremonies, in the U.S. and Canada.

And: In the middle of a trade war the prime minister and his cabinet were talking tariffs... and unity.

Also: Is it still “the people’s festival”? TIFF is big business. We look at whether the film festival is getting away from its homespun roots.

Plus: Iran-backed Houthis seize positions on Yemen’s western coast, Céline Dion comeback in France, BC politics untangled, and more.

Prime Minister Mark Carney welcomes Volodymyr Zelenskyy to Calgary to sign a 100-year pact on drones and defence, as the Liberal cabinet begins two days of planning in Banff — heavily focused on trade and tariffs — ahead of Parliament's return.

And: Closing out his party's first-ever midterm convention in Dallas, President Trump says he will cut a $5,000 cheque to every adult American if Republicans hold Congress, as the GOP tries to rally voters two months out from Election Day.

Also: Twenty-five years after the towers fell in a terrorist attack, we go inside the New York City lab where scientists are using cutting-edge DNA tech to identify 9/11's dead — roughly 1,100 people remain unnamed, as the U.S. and Canada prepare to mark Friday’s anniversary.

Plus: Diesel prices creep toward a record high as truckers and industry brace for a tight winter, a British man wanted in Mexico on fraud charges tells CBC News he's a victim too, and more.

The trade war escalates again. The White House is set to block a host of Canadian goods — alcohol, dairy, motorcycles — from crossing the border, hours after Canada's own retaliatory tariffs kicked in.

Plus: GlobalEye Gamble. How Ottawa picked a Swedish surveillance plane before knowing it could do the job. A CBC News exclusive.

And: An ex-Anthropic researcher says there's more than a 10 per cent chance AI "kills all humans" — accusing the industry of "gambling with our lives."

Also: The worrying slide in Canadian children’s test scores, U.S.-Iran tensions boil over. a $2.2-billion uranium mine bringing new hope to northern Saskatchewan communities, and more.

Canada returns fire in the ongoing trade war with the U.S.. Businesses are already raising prices in response. And that will hit consumers right in their wallets.

And: The air in local hockey arenas is filled with more than the shouts of excited parents. The Canadian Medical Association says carbon monoxide is an invisible threat on the ice.

Also: Authorities in France are trying to get to the bottom of a brazen art heist at the Renoir Museum on the French Riviera.

Plus: Questions for Bombardier, sanctions on goods from Israeli settlements, the air at Ground Zero, and more.

There are no talks scheduled as the deadline approaches for Canada to impose a range of countertariffs on products entering this country from the United States. It’s the latest escalation in the trade fight after negotiations hit an impasse.

And: A slow-moving weather system has battered Cape Breton, which left thousands without power and dozens of homes cut off.

Also: Techlash: some parents say they are frustrated with the amount of screen time kids are getting in school — and the lack of control over their digital footprint.

Plus: Far-right party wins in Germany, Amazon cargo plane crash, back-to-school vaccines, and more.