Russia’s invasion of Ukraine has been raging since Feb. 24. The war has triggered a global food and fuel crisis, because Ukraine is a major exporter of grain, and Russia is a major exporter of oil to Europe. In recent days, however, a deal was struck to lift a blockade and allow grain to be exported from Ukraine. Russia also agreed to restart the flow of natural gas, fuel that is absolutely vital for countries like Germany. At face value, both moves appear as if Russia is taking a more conciliatory tack. But is it? Ukraine is also making advances to take back parts of the country it lost early in the war. But does it have the capacity to do that swiftly enough to turn the tide of this war? Its efforts are being hindered by reports of Russian infiltration in Ukraine’s sprawling spy service, the SBU. Last week, Ukraine’s president dramatically shook things up by firing two of his top officials — one of them his childhood best friend and the head of the intelligence agency. So we’re talking to the Wall Street Journal’s James Marson to unpack the latest developments and to get a better idea of who is winning — and where things could go from here.

There was a time when former Wildrose Party leader Danielle Smith was in the political wilderness, cast out by a stunning floor-crossing that alienated and angered many Alberta conservatives. Now, it seems the former political pariah is back in the fold, as she makes her play to replace Jason Kenney as leader of the United Conservative Party and become Alberta's next premier. She’s drawn big cheers at the Calgary Stampede and brought in big dollars to her campaign with her anti-mandate and anti-Ottawa message. Today on Front Burner, CBC’s Jason Markusoff is here to discuss Smith’s past political downfall and her current political resurrection.

On This Hour Has 22 Minutes, Nathan for You and HBO’s new comedy The Rehearsal, Nathan Fielder has played a stiff, socially inept agitator that can barely get through a conversation. The amount that Fielder’s real personality informs his character is a mystery. But Fielder has used his bizarre comments and awkward silences to destabilize his interviewees, joining a wave of comedians that try to get authentic reactions in an age of careful-crafted “reality” television. And now, on The Rehearsal, Fielder is adding a layer of absurdity, as he helps people rehearse difficult social situations with paid actors and perfect sets of real locations. With the second episode of The Rehearsal out today, New York Magazine features writer Lila Shapiro joins us to discuss how Fielder’s over-controlling personality is paradoxically creating some of the most spontaneous moments on television.

Canada's latest COVID-19 surge is being fuelled by the BA.5 variant. It's prompting some public health officials to make fourth jabs of a COVID-19 vaccine available to all adults. While most provinces are already offering fourth doses to their most vulnerable residents, some — such as New Brunswick, Quebec and P.E.I. — are urging the general adult population to sign up as well. However experts are divided about the urgency at which Canadians should receive a second boost, and when. Prof. Raywat Deonandan is an epidemiologist specializing in global health at the University of Ottawa. He breaks down what we need to know about the future of COVID-19 vaccination.

Often when we think about lethal heat, we picture things like forest fires. But the fact is, one of the most dangerous places to be during a heat wave is inside a city. And considering that nearly three-quarters of Canadians live in urban areas, that's a big problem — and one that will only get more dangerous with time. Today, CBC Montreal reporter Jaela Bernstien breaks down what "urban heat islands" are, and who is most vulnerable to their deadly impacts. But this story isn't all doom and gloom. There are also lots of ways to fight urban heat — even some that are cheap and quick — and we'll be looking at those too.

You’ve heard this here before: Everything is so crazy expensive these days. In May, Canada’s inflation rate was 7.7 per cent, the highest it's been since 1983. Bank of Canada Governor Tiff Macklem warned that the rate is expected to climb higher than eight per cent this week. In response, Canada's central bank raised its benchmark interest rate last week by 100 basis points, or one percentage point, to 2.5 per cent — the biggest hike in more than two decades. Today, CBC business writer Pete Evans explains the impacts this move could have on the debt levels of Canadians, the economy writ large, and the concern that a recession could be just around the corner.

Last week, NASA revealed five images from the James Webb Space Telescope which gave the sharpest look at the universe’s cosmic history. The images, which showed stunning visuals of orange and red gasses, spinning galaxies and dying stars, are the first to show in detail what the universe looked like billions of light-years away. The telescope, which was launched last December, is a collaboration between NASA and the European and Canadian space agencies and is designed to be successor to the older Hubble Space Telescope. Scientists and viewers alike have been in awe of these images. Today on Front Burner, we unpack the enormity of these visuals, what they mean for space research and why so many are emotional over these images with science writer Shannon Stirone.

The notorious former Hells Angels boss Maurice "Mom" Boucher died of cancer on Sunday. He was serving a life sentence in prison. Before being convicted, he was at the centre of the violent biker wars that took place in Quebec in the 1990s. Today on Front Burner, we discuss this vicious chapter in Canada's history and how Boucher made a name for himself. Julian Sher, an investigative journalist and a former producer at the CBC's Fifth Estate joins us. For years, Sher covered the biker wars and Boucher's role in them. He's co-written two books on the Hells Angels in Canada and around the world.

The recent decision by the U.S. Supreme Court to overturn Roe v. Wade, which had secured constitutional protections for abortion in the country for nearly 50 years, raises questions about whether something similar could happen here. Canada has its own historic Supreme Court ruling that protects abortion rights: R. vs. Morgentaler. It still stands. But is it ironclad? Or could it be overturned, too? Today on Front Burner, we explore the history of abortion rights in Canada, just how protected they really are, and how much sway the anti-abortion movement has here. We talk to Kelly Gordon, an assistant professor at McGill University and co-author of the book, The Changing Voice of the Anti-Abortion Movement: The Rise of Pro-Woman Rhetoric in Canada and the United States.

The global rise of Uber's ride-sharing service — and the subsequent crushing of taxi services in many countries — has largely been portrayed as an inevitability. But a trove of 124,000 leaked, confidential documents reveal ruthless dealings inside the company as it expanded across the globe, and suggest that its rise was far more than an organic product of market forces. The "Uber files" — first leaked to the Guardian and then shared with the International Consortium of Investigative Journalists — show how the company broke laws, secretly lobbied governments, and put drivers at risk as it climbed to the top. Today, we're diving into those files with the Washington Post's Doug MacMillan and with CBC reporter Frédéric Zalac, who looked at what the documents expose about Uber's dealings in Canada.