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The Opportunity to Question Mark Williams Twenty-five years have now passed since the first Harry Potter film and, with the HBO reboot due out this Christmas, Warner Bros is ramping up the celebrations. Key among them is the unveiling of a new feature at the studio tour showcasing key moments, costumes and props from Harry Potter and the Philosopher’s Stone. Mark Williams' Role in Harry Potter And this is why Mark Williams is now taking your questions – although, as Potter purists will know, his character doesn’t actually appear in the first film. Arthur Weasley does, however, play a pretty big role in the other seven movies, so let’s muggle through regardless. A Look Back at Mark Williams' Career In the movies, Williams plays the ministry of magic employee, husband to Julie Walters’ Molly Weasley and father of Ron, Ginny, Fred, George, Percy, Charlie and Bill – a role for which he had to dye his hair red. Williams will be answering your queries about all things Potter, as well as about his career to date, from his early work with the Royal Shakespeare Company and National Theatre in England to his breakthrough on The Fast Show in the 1990s. Other notable roles include Stardust, 101 Dalmatians, The Borrowers, Shakespeare in Love, A Cock and Bulk Story, Albert Nobbs, and Aardman’s Early Man. How to Post Your Questions Post your questions for Williams by noon BST on Monday 4 May and we’ll publish them in June in our regular reader interview series.

The Rise of Mapanta South Africa pulses with electronic music, from amapiano to gqom, and now mapanta, a subgenre originating in Limpopo, has reached international ears. Mapanta was originally an adrenaline shot for 1980s wedding parties, but it faded at the turn of the century. However, 27-year-old self-taught producer Serokolo 7 has updated this intensely fast and highly compressed music. Serokolo 7's Maramfa Musick Pro On his debut album, Serokolo presents a masterclass in mapanta's rural celebratory sound. Splicing together samples of animal howls with hammering marimba rhythm, scatter-gun electronic percussion, and snatches of vocals, the initial impression is of relentless cacophony. Opener Naba Ba Papedi sets the tone, its folk vocal melodies blended with a cranked-up drum'n'bass beat that fizzes without reaching a cathartic crescendo or drop. The Sound of Mapanta While less heavily rhythmic numbers such as Bonkoko Bagana allow keening synth lines to take the lead and bestow a calmer feel, most tracks on the record run at 180bpm or quicker, meaning production elements arrive so thick and fast it's almost impossible to distinguish them from each other. But Serokolo excels in this barrage. Rather than creating nuanced arrangements with emotional arcs, his tracks are charged up by mind-clearing loudness itself; to succumb to these consistently breakneck rhythms is strangely freeing. Other Releases This Month Shye Ben Tzur, Jonny Greenwood and the Rajasthan Express release their second album, Ranjha (World Circuit). Korean producer Hwxxng's K-Core (Chinabot) stitches ancient ceremonial music into the unrelenting rhythms of hardstyle and techno. The self-titled debut record from Iranian duo From the Lips to the Moon (Akazib Records) is a beguiling combination of spoken word and ambient electronic improvisations.

The UK Biobank Data Breach: A Minor Setback One thing Britain is exceptionally good at is collecting and using health data for research, studying cohorts of people over many decades. A shudder of alarm rippled through the research world at the news this week that UK Biobank’s data had been put up for sale on China’s Alibaba site, with the science minister, Patrick Vallance, saying that more attempts to sell the data in China were expected. Understanding the Breach and Its Impact Biobank dashed to reassure its 500,000 members, and as a longtime volunteer I received a message not only explaining what had happened but listing some of the invaluable research findings and remedies that had already sprung from our data. Remarkably, a representative for Biobank told me that only about 100 people inquired about withdrawing, and after each was spoken to, only 50 actually backed out – pretty impressive. Prof Sir Rory Collins, Biobank’s chief executive, says he will personally speak to any anxious participant. The Value of Biobank Data The list of good done using Biobank data includes a blood test revealing motor neurone disease years before symptoms arise, a single gene behind almost all Alzheimer’s cases and a score to decide which overweight people have most risk factors and should be first for weight-reduction drugs. Challenges and Future Directions Longitudinal studies have been a research jewel, allowing projects such as studying children born in the same month who are then followed throughout their lives. In the UK we have followed groups of people from 1946, 1958, 1970, 1989-90 and 2000-2002 and there is now a new study recruiting 30,000 babies this year. The organisation Use My Data, which founded by cancer patients grateful for research that saved their lives, campaigns to get people to join research projects, helping researchers devise trustworthy transparent data systems. The Future of Health Data Research Summon up your public spirit. A population-wide study recruiting now is Our Future Health, seeking 5 million volunteers, so sign up here. I’ve already done so – it’s simple, just a blood sample and a questionnaire gets you a £10 token. Everyone benefits.

Why the Guardian’s Newsletter Author Is Suddenly Dreading SpringThe author, an environment reporter, admits that longer pollen seasons are stealing the joy of walking in forests and wetlands. Climate‑driven extensions of the pollen calendar are turning a beloved season into a health hazard for many Europeans.Climate‑Driven Extension of the European Pollen SeasonA recent Lancet medical‑journal review found that the European pollen season is now 1‑2 weeks longer than in the 1990s. The start dates for birch, alder and olive trees have shifted earlier by the same margin, and U.S. research shows higher CO₂ levels boost pollen production per plant.Quantifying the Health and Economic TollTens of millions of Europeans suffer from allergic rhinitis each year.Longer exposure translates into higher medical costs and reduced workplace productivity.Projected global warming of 2.6°C by century‑end could further amplify pollen loads.How Extended Allergies Ripple Through Recreation and TourismBeyond individual discomfort, the pollen surge erodes the appeal of outdoor activities. Beach resorts choked by wildfire smoke, Alpine ski slopes losing snow, and rising insurance and travel costs are pushing the industry toward a “non‑tourism” era. The combined effect threatens both local economies and the broader cultural habit of “getting outside.”Looking Ahead: Adapting to a Pollen‑Heavy FutureExperts suggest two complementary strategies: (1) develop urban greening and low‑pollen plantings to create healthier micro‑climates, and (2) encourage people to explore nature close to home, where exposure can be managed. Without decisive climate mitigation, the pollen season will keep expanding, making seasonal enjoyment an increasingly rare luxury.

The Musical Collaboration Cellist Paul Watkins and pianist Alessio Bax bring their shared musical impulse to Beethoven's cello sonatas, delivering an unflaggingly eloquent performance. Watkins, a veteran cellist of the Nash Ensemble and the Emerson Quartet, has immersed himself in almost all of Beethoven's chamber music, and this experience shines through in their collaboration. The Sonatas The five sonatas span Beethoven's composing life, from the early sonatas that break new ground in writing for cello and keyboard as equal duet partners, to the later sonatas that harness Watkins's full powers of expression. The expansive third sonata, Op 69, centers on a perky middle movement akin to a symphonic scherzo, while the final pair of sonatas showcase the duo's ability to handle complex passages with tightly controlled restraint. The Performance Watkins and Bax's performance is marked by a light, crisp touch, particularly in the earlier sonatas. The slow, serious introductions lead into extended movements showcasing the virtuosity of the pianist, to which Bax rises with ease. The duo handles the closing passages of the fifth sonata with restraint, then gently clears the air with the introduction to the wrangly little fugue of the finale. The Verdict Overall, Watkins and Bax's performance of Beethoven's cello sonatas is beautifully done, with a deep understanding of the music and a shared impulse to deliver eloquence. The album is available to listen on Apple Music and Spotify.

Public Anxiety Peaks as AI Quality Concerns Reach a New High As the U.S. midterm elections loom, voters are increasingly uneasy about artificial intelligence. 57% of registered voters say the risks of AI outweigh the benefits, according to an NBC News poll. Younger adults are even more skeptical: 61% of those under 30 believe more AI will make people worse at creative thinking, per a Pew Research survey. Poll Data Shows Majority Demand Stronger AI Regulation 57% of voters think AI risks outweigh benefits (NBC News). 61% of adults under 30 fear AI will erode creative thinking (Pew). 74% believe the government is not doing enough to regulate AI (Quinnipiac). These figures illustrate a growing political cohort that is ready to back concrete policy measures. Economic and Cultural Costs of AI‑Generated “Slop” Critics label the flood of low‑effort, AI‑generated content as “AI slop”—digital output that appears productive but later requires costly correction. A Goldman Sachs study found AI’s net impact on productivity to be a rounding error, while the Harvard Business Review warns that “workslop” drains human creative labor. Beyond productivity, slop threatens cultural ecosystems: fake music bands on Spotify, AI‑written books crowding Amazon, and inaccurate Google “AI overviews” that generate millions of wrong answers per hour. Legislative Proposal: A 1% Tax on Generative AI Output Mike Pepi proposes a straightforward levy: any company that furnishes or hosts generative AI content would pay an annual ~1% tax on its revenue. The five largest public AI firms—Nvidia, Google, Apple, Microsoft and Meta—collectively hold about $18 trillion in market value, meaning a 1% tax could generate roughly $180 billion each year. Revenue would flow into a publicly controlled fund that distributes grants to cultural institutions, artists, journalists, educators, and research projects—the very sectors whose data train these models. Outlook: From Tax to a Cultural Renaissance? If enacted, the “slop tax” could create a feedback loop: AI firms contribute to the public good, while creators receive resources to produce higher‑quality work. The proposal also offers Democrats a tangible policy win ahead of the midterms, potentially restoring trust among younger voters who feel betrayed by AI’s promises. While broader AI regulation remains fragmented, a targeted levy on the most egregious output may be the pragmatic first step toward a healthier digital ecosystem.

The Concept Behind the Show The small print tells us this show has no connection to the fashion house of McQueen, nor does it feature any of Alexander McQueen's designs. You could think it's a cynical attempt to get bums on seats for classical music, but it is created by McQueen's longtime musical director, John Gosling, alongside Robert Ames, conductor of the London Contemporary Orchestra. The LCO plays music that inspired the designer, all run together like a DJ mix with theatrical lighting and multi-genre guest performers. The Music and Performance Far from “unnatural”, most of the harmonies here are as concordant as Classic FM, mostly film soundtracks (The Hours, The Piano, a couple of John Williams') and tearjerkers (Dido's Lament, Barber's Adagio for Strings). The friction, however, is all in the combinations. For example: two dancers posturing in nude body stockings – one has hooves instead of hands and tights over her face – and then behind them, the cello section in formal white tie and tails. Hearing Handel cut with the Rolling Stones in a jaunty string arrangement, or a blast of Nirvana, feels like your GCSE music teacher trying to be cool, although the blaring siren of Armand Van Helden's Witch Doktor is genuinely unsettling. The Impact of the Performance Cabaret singer Le Gateau Chocolat always has presence and fabulous costumes – one here resembles a green Quality Street-wrapper – but like the rest of this show seems under-rehearsed. The two dancers, choreographed by Holly Blakey, appear in superfluous layers that exaggerate the messy world of the choreography and it is hard to tell whether it's being serious or sarcastic when the dancers shake their heads comically in time with a piano trill. The Legacy of Lee Alexander McQueen There's a superficiality to this genre clash; are these art forms really speaking to each other or is it provocation for the sake of it? But there are genuinely illuminating moments in a film choreographed by Michael Clark, a friend of McQueen's, both men steeped in classical craft and punk spirit. We see dancer Jules Cunningham in a very Isabella Blow hat, and Simon Williams dancing to Barber's Adagio, one of the most loved/hackneyed pieces of music. And yet the shocking starkness of Clark's ironed-out angles cuts through the familiarity to bring a laser focus to the music. It's a show full of contradictions, wrestling between sweet and edgy, but ending up quite middle of the road. The Show's Details At Royal Festival Hall, London, until 30 April

The Creation of a New Financial Crimes Agency Canada is to establish a new and powerful law enforcement agency to investigate financial crime, in stark contrast to the US, where weakened federal investigators have struggled to pursue fraudsters and the White House has pardoned convicted money launderers. The Event Details A bill to create the Financial Crimes Agency (FCA) completed its first reading in parliament this week. The legislation was introduced by the governing Liberals and with their parliamentary majority, the party is likely to move it through both levels of government quickly. The new agency, tasked with investigating and prosecuting financial crimes, is the result of a public inquiry that found Canada lacked a cohesive strategy against money laundering, placing it behind its international peers. The Data Analysis In addition to a new law enforcement agency, Canada will ban cryptocurrency ATMs, which officials say have been used by scammers to defraud victims and by criminals to launder the proceeds of crime. Canada has nearly 4,000 cryptocurrency ATMs, the most per capita in the world. For more than a quarter of a century, the financial transactions and reports analysis centre (Fintrac) has functioned as Canada’s financial intelligence unit. Last year, the agency uncovered $45bn in transactions from money laundering, counterterrorist financing, sanctions and evasion disclosures. The Impact Analysis The Canadian effort marks a stark contrast to the approach taken by the current US administration to the scourge of financial crime. Donald Trump’s government issued a high-profile pardon of Changpeng Zhao after the self-styled “king” of cryptocurrency pleaded guilty to money laundering charges. His company, Binance, had been ordered to pay a record $4.3bn penalty for its role in facilitating terrorist financing. The Prediction “Canada and the US are diverging,” said Jessica Davis, adding that the US was still “far ahead of us in terms of its ability to prosecute and invest, investigate and prosecute” financial crimes. “We’re still playing quite a bit of catchup now. Hopefully Canada will shore up our own abilities to protect Canada. Because the things that happen in the US do tend to happen in Canada. And so this new agency is a bulwark against that.”

Spring Awakening and the New Cairngorms By‑lawThe Guardian’s latest country diary captures the resurgence of birds, blossoms and buzzing insects across the Cairngorms, while noting that 1 April 2026 saw the introduction of a strict bylaw prohibiting barbecues and open fires in the park. The measure follows a series of recent wildfires that have scarred the landscape and threatened native species such as red squirrels and capercaillies.Wildfire Statistics Highlight Growing Risk241 wildfires were recorded in Scotland in 2025, the highest count in recent memory.The Dava Moor fire in 2024 burned 11,000 hectares of moorland, killing thousands of birds and mammals.A smaller blaze north of Aviemore this spring devastated 600 sq m of pinewood.These figures are echoed in the Scottish Government’s Strategic Action Plan for Wildfires, which warns that climate change is creating conditions for more frequent and intense fires.Implications for Conservation, Tourism and Local CommunitiesThe ban directly supports ongoing conservation efforts, particularly the protection of capercaillie lek sites during the annual Lek It Be campaign. By eliminating stray sparks, the park hopes to preserve the delicate balance that allows species such as pied wagtails, siskins and osprey to thrive.Tourism operators are also feeling the impact. While campfires and barbecues have long been a staple of hill‑top picnics, the new rule encourages a shift toward designated cooking facilities and low‑impact visitor practices, potentially reshaping the visitor experience in the highlands.What the Ban Means for Future Land‑Management in ScotlandExperts predict that the Cairngorms ban could become a template for other vulnerable landscapes across the UK. If compliance remains high, the policy may reduce the number of small‑scale ignitions that often act as precursors to larger conflagrations.Continued monitoring will be essential. The Scottish Government plans to publish annual wildfire reports, and local conservation groups are calling for increased funding for fire‑break maintenance and community education programmes.