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Dachshunds are enjoying a global popularity boom, climbing to No. 5 in the American Kennel Club's 2025 rankings as owners embrace their small size and outsized personalities.  The surge is supporting everything from breed meetups to dachshund cafes, even as owners contend with health concerns including intervertebral disc disease, which may affect roughly one in four dachshunds. Joining Bloomberg This Weekend to discuss all things Dachshund is Bloomberg News Bangkok Bureau Chief Randy Thanthong-Knight.

US spirits exports to Canada fell 70% from March through December 2025 after most provinces removed American alcohol from their shelves, while exports elsewhere rose 2.5%. American Whiskey Association President & CEO Michael Bilello is on Bloomberg This Weekend and says restoring market access is only the first challenge, American whiskey producers also need to rebuild demand among Canadian consumers after more than a year of trade tensions.

Former Head of MI6 Sir Richard Dearlove joins Christina Ruffini on Bloomberg This Weekend to discuss the current state of the international intelligence community.  Dearlove says that UK-US intelligence cooperation remains close but expressed concern about politicization and personnel changes inside the CIA, an issue that has also drawn scrutiny amid broader changes across the US intelligence community.

Bloomberg News Executive Editor for Canada Derek Decloet joins David Gura and Christina Ruffini on Bloomberg This Weekend and explains that Canadians are frustrated but not necessarily surprised after last-minute US-Canada negotiations collapsed, triggering 50% US tariffs on about $20 billion of Canadian goods and a dollar-for-dollar retaliation pledge from Ottawa.

Joining Bloomberg This Weekend is Bloomberg Radio host of "Masters in Business" Barry Ritholtz and he tells hosts David Gura and Christina Ruffini that Treasury Secretary Scott Bessent's bond-market moves may provide short-term relief but cannot override persistent inflation, rising debt and the forces setting long-term yields.

Chinese AI models are rapidly narrowing the performance gap with US rivals while gaining users with lower prices and open-weight technology that lets companies deploy them locally. Bloomberg News Tech Reporter Luz Ding is on Bloomberg This Weekend and explains to hosts David Gura and Christina Ruffini that Chinese AI Models capabilities are approaching leading US models at lower cost.

Sam Palmisano says the AI boom is built on long-cycle bets in data centers, chips and energy, even as AI software changes at breakneck speed. If adoption slows or cheaper Chinese open-source models gain traction, Big Tech may have to rethink the spending plans behind today's AI race.

Chief Justice John Roberts temporarily allowed construction of President Donald Trump's White House ballroom to continue while the Supreme Court considers whether to grant a longer stay, after lower courts said the project required congressional authorization. Bloomberg News Supreme Court Reporter Greg Stohr joins hosts David Gura and Christina Ruffini on Bloomberg This Weekend to explain that the court also weighs challenges involving Trump's mail ballot order and the administration prepares for expected litigation over its new Canada tariffs.

US-Canada trade talks collapsed late Friday, triggering 50% US tariffs on about $20 billion of Canadian goods and a pledge from Prime Minister Mark Carney to retaliate dollar for dollar. Joining Bloomberg This Weekend are Bloomberg White House Correspondent Jeff Mason and Bloomberg Markets and Economic Columnist Jonathan Levin to discuss how the dispute could deepen a lasting rupture between the allies while tariff-driven inflation, rising Treasury yields and the $40 trillion US debt load complicate the administration's economic message ahead of the midterms.

• Ethereum is evaluating 66 proposals for its upcoming Hegotá upgrade, with FOCIL already chosen as the consensus-layer headliner and other ideas targeting privacy, account abstraction and censorship resistance.
• Ethereum still dominates DeFi with about US$41.35 billion in TVL, well ahead of Solana ~US$4.82b, BNB Chain ~US$4.87b, Avalanche ~US$0.43b and Cardano ~US$0.06b.
• Each rival chain is also upgrading—Solana on speed and client diversity, BNB Chain via the Pasteur hard fork, Avalanche with Helicon execution/validator changes, and Cardano through on-chain governed hard forks - creating different trade-offs in speed, security, governance and scalability.

Chris Mecray, CFO at ITG, joins Bloomberg Businessweek Daily to discuss the company's performance since its July 1 IPO, and its role in the AI buildout as a fiber and communications company. Mecray says ITG is "the picks and shovels of the AI boom... with a long runway of opportunity associated with creating the connectivity that data centers require once the actual site itself is built." Mecray speaks with Carol Massar, Emily Graffeo, and Nina Trentmann, CFO Briefing Editor.

Scientists are on the cusp of fulfilling a decades-long quest: to use vaccines to teach the immune system to spot and destroy cancer cells. News that an mRNA cancer vaccine developed by Merck & Co. and Moderna Inc. kept melanoma from returning in a large, late-stage trial marks a critical next chapter for a technology beleaguered by post-pandemic political backlash and years of false starts before then. Bloomberg Opinion Columnist Lisa Jarvis writes "Moderna and Merck's Cancer Vaccine Is a Marvel."