Your World Tonight CBC News & Politics

Rescue teams are searching for Iranian President Ibrahim Raisi - after a helicopter transporting him crashed in a mountainous area. Also: CBC News is on the ground in Haiti - where the World Food Program is trying to bring food and aid to millions of people displaced by gang violence. Plus: For centuries, the Mona Lisa has been a bottomless source of mysteries for art lovers. Now, one scholar thinks she's solved one of the painting's many puzzles.

There's good news for residents of Fort McMurray, Alberta - an evacuation order for the city has been lifted - allowing thousands of wildfire evacuees to begin returning home. Also: Ukraine introduces new laws to conscript more soldiers - as Russia gains more ground on the battlefield. Plus: The legacy of Sir John A. MacDonald has been an intense subject of debate in recent years. Now, the site of his former home has reopened, offering a new experience to visitors - and highlighting indigenous voices.

A young child in Ontario has died due to measles. It is the first death from the virus in the province since tracking began in 1989. There are new calls for people to get themselves and their children vaccinated. And: The head of Canada’s intelligence agency issues a strong warning about the dangers of TikTok. He says it’s very clear from the design of the app that our data is available to China’s government. Plus: The world's number-one-ranked golfer Scottie Scheffler was arrested early this morning on way to a PGA championship in Louisville Kentucky.

In the latest season of Understood, Mumbai-based journalist Salimah Shivji examines how Modi went from being barred from the US, to becoming one of the most powerful men in the world. And asks the pressing question: what’s at stake if he wins again? Season 3: Modi's India. 

About Understood: Know more, now. From the fall of Sam Bankman-Fried, to the rise of Pornhub, Understood is an anthology podcast that takes you out of the daily news cycle and inside the events, people, and cultural moments you want to know more about. Over a handful of episodes, each season unfolds as a story, hosted by a well-connected reporter, and rooted in journalism you can trust. Driven by insight and fueled by curiosity…The stories of our time: Understood. More episodes of Understood are available at: https://link.chtbl.com/hiYSz1gi

In a Canadian first, a dead man’s heart is reanimated for transplant. But the transplant itself had to happen in the U.S. because Canada still doesn’t have the technology.
And: Police are sharing new details about their investigation into self-proclaimed “Crypto King” Aiden Pleterski. He is accused of running a Ponzi scheme worth more than $40-million dollars. Plus: There is optimism in Fort McMurray as the wildfire threatening the community did not advance today. Still, residents can expect to be out of their homes until at least next week.

The people who lived through the 2016 fire in Fort McMurray watch as another one creeps closer. But fire officials say things are different this time. And: The housing market is stuck in a kind of limbo. Prices are down and listings are up. But sales – are also down. Plus: New research says climate change is the greatest threat to bees and other pollinators, which in turn threatens global food security.