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Pakistan's Diplomatic Mission to IranPakistan's Interior Minister Mohsin Naqvi has travelled to Iran to deliver a "special letter" to Iran's Supreme Leader Mojtaba Khamenei as part of diplomatic efforts to end the United States-Israeli war on Iran, which began 100 days ago.Naqvi arrived in the Iranian capital, Tehran, late on Saturday, and met his Iranian counterpart, Eskandar Momeni. The two discussed the "latest regional developments and matters related to internal security", among other issues, Naqvi said on social media. Before his arrival, Iranian media reported that the Pakistani official was carrying a letter from his country's army chief and prime minister for the supreme leader.Rising Tensions in the Gulf RegionHis visit comes amid renewed tensions in the Gulf region. On Sunday, the US Central Command (CENTCOM) said its forces had shot down two Iranian one-way attack drones "that threatened international maritime traffic in the Strait of Hormuz".On Friday, it said it intercepted seven ballistic missiles heading towards Kuwait and Bahrain hours after it had shot down four Iranian drones launched towards the strait, a key waterway through which about 20 percent of globally traded oil normally passes. United States forces said they "subsequently" struck Iranian coastal surveillance radar sites in Garuk and on Qeshm Island "to defend against further maritime attacks".The attacks drew the ire of Gulf nations that are bearing the brunt of a war they lobbied against. Bahrain denounced the latest attacks as "blatant aggression". The island nation hosts the headquarters of the US Fifth Fleet. Kuwait said the attacks "represent a dangerous escalation". Egypt, Jordan and Qatar joined the condemnation.Stalled Peace NegotiationsDespite tit-for-tat attacks and sporadic exchanges of fire, negotiations over a deal to end the war are continuing, but an agreement remains elusive.US President Donald Trump has alternated between threatening a renewed military campaign and expressing optimism about a diplomatic breakthrough. On Wednesday, he said an agreement could be finalised over the weekend.But Iranian officials have offered a more cautious tone. "The negotiations are at a deadlock, and Trump must break this deadlock," Mohsen Rezaei, military adviser to Iran's supreme leader, told US media outlet CNN on Saturday. He also called for the release of about $24bn in frozen Iranian assets.Key Obstacles to PeaceThe unfreezing of Iranian assets is one of the key sticking points in ongoing talks. On Wednesday, media reports said US Treasury Secretary Scott Bessent was considering using them to support rebuilding efforts in the Gulf caused by Iranian attacks."The Treasury will utilise all tools available to allow Iranian assets to be made available to our Gulf allies to support rebuilding and repairs for any future damage caused by Iran," a US official told several news agencies.Other sticking points include an end to hostilities across all fronts, including Lebanon; sanctions waivers on crude exports; the lifting of a US port blockade; and leverage over the Strait of Hormuz.Global Energy Security at RiskIran has blocked the narrow waterway since the US and Israel launched the war on February 28. Tehran responded by firing waves of drones and missiles at Israel, US targets in the region and neighbouring Gulf countries.It declared the Strait of Hormuz closed and threatened to attack vessels transiting through the narrow waterway without its permission. Its effective control of the trade chokepoint sent oil and gas prices to a multi-year high and threatened global supplies.Armed hostilities largely subsided after the temporary Pakistan-mediated ceasefire began on April 8. Direct talks in Islamabad broke down on April 12, and the two sides have exchanged a series of proposals to end the war via Pakistan since then. However, several flare-ups since have led to growing fears that full-scale fighting could resume.

The Scale of the 2026 World Cup The 2026 World Cup is set to be an event like no other, with 104 matches played across 16 venues in three different countries and three different time zones. This sheer scale will make it a unique experience for both players and fans. Challenges of Hosting in North America Hosting the World Cup in North America will be a massive undertaking, given the vastness of the continent. The landmass of England could fit comfortably into the state of Georgia, illustrating the enormous distances teams will have to travel. For instance, traveling from the East Coast to the West Coast of the United States can take over 2,500 miles, which is equivalent to flying from New York to Los Angeles. This will not only be a challenge for teams but also for fans who will have to navigate these long distances, often at significant personal cost. Impact on Teams and Players Teams will have to contend with crossing time zones, adapting to varying altitudes, and dealing with extreme heat and humidity. For example, teams playing in Mexico City or Monterrey will have to acclimate to high altitudes, which can affect performance. Additionally, the heat and humidity in cities like Kansas City, Missouri, where England will be based, can be oppressive. These conditions will require teams to adapt quickly and manage their resources effectively. Team Preparations and Expectations Several top teams have set up their bases in the host countries, with England choosing Kansas City, Missouri. Spain are favorites due to their possession-based style, which will suit the conditions they will face. England, with key players like Declan Rice and Harry Kane, also have a strong chance. Other contenders include France, Argentina, and the Netherlands, who have a strong squad and experienced coach Ronald Koeman. The Dark Horses and Host Nation Advantages Teams like Senegal, Japan, and the Netherlands are considered dark horses. The host nations, including the USA, Mexico, and Canada, will also have an advantage, particularly when playing in front of their home fans. For example, Mexico's passionate fans will create a formidable atmosphere, making it tough for opposing teams to secure victories. The Fan Experience The fan experience will be a significant aspect of the tournament, with hardcore fans, known as the American outlaws, expected to bring their passion and energy to the matches. The unique fanbase of the USA, with their live bands and drums, will add to the excitement of the tournament. Overall, the 2026 World Cup promises to be an unforgettable experience for both players and fans alike.

The Appointment of Dr. Marnie Lovejoy Dr. Marnie Lovejoy, a criminal lawyer and passionate angler, has been appointed as the first female chair of the Grayling Society. This appointment marks a significant milestone for the organization, which has traditionally been male-dominated. The State of Grayling and Its Habitat The grayling, known as the 'lady of the stream' due to its iridescent pink scales and elegant dorsal fin, is a crucial indicator species for water quality. Dr. Lovejoy emphasized that grayling are highly reactive to changes in water quality and are often the first to suffer from pollution or chemical increases in rivers. Promoting Inclusivity in Fly-Fishing Dr. Lovejoy aims to promote fly-fishing among women and increase youth membership in the Grayling Society. She believes that by showcasing the sport's appeal and importance, more women can be inspired to join. Lovejoy also highlighted the historical role of women in fly-tying, a crucial aspect of fly-fishing. The Future of Grayling Conservation Dr. Lovejoy's first task as chair will be to set up a grayling map using catch-and-release data from members. This initiative will help identify areas where grayling are thriving and inform conservation efforts. With her leadership, the Grayling Society is poised to take a more proactive approach to protecting this iconic species and its habitat.

The Scam Unfolds: How ChatGPT Leads Shoppers to Fraudulent Retail SitesConsumers asking ChatGPT for product recommendations are being directed to counterfeit versions of well‑known retailers such as Russell & Bromley and Dunelm. The AI returns price‑listed options, links to sites that look official, and users complete purchases that never arrive, while their bank details are harvested.Financial Toll and Scale of the FraudFake sites advertise discounts of up to 80%, a classic lure for victims.Payments are typically requested via bank transfer, a red flag that many users overlook.Ask Silver identified multiple cloned domains (e.g., therussellbromleyofficial, russellandbromleylondon) that mimic legitimate URLs.Implications for AI Trust and Consumer SafetyNational Trading Standards warns that AI‑generated recommendations are not a guarantee of legitimacy. The incident highlights a new attack vector: “poisoned” large language models that surface malicious content because the underlying training data includes fraudulent webpages.Current Mitigation Efforts by Platforms and RegulatorsOpenAI has removed the identified fraudulent URLs from its search index and provides a reporting form for policy violations.Next, the owner of the former Russell & Bromley brand, is actively working to shut down the cloned sites.Consumers are advised to verify URLs (look for .co.uk or .com), avoid extra words like “official” or “deals,” and report incidents to banks and the UK Report Fraud service.Looking Ahead: Safeguarding AI‑Driven CommerceAs AI assistants become a primary shopping aide, continuous monitoring of training data and rapid removal of malicious sources will be essential. Industry bodies may introduce stricter verification standards for AI‑generated links, and retailers are likely to adopt dedicated AI‑safe browsing tools to protect customers.

The Legal Challenge to Utah's Stratos DatacenterUtah residents have teamed up with a progressive non-profit organization to sue over an under-development AI datacenter backed by celebrity investor Kevin O'Leary, claiming the planned Stratos project facility "irrevocably" cuts off citizens' rights by not allowing sufficient public input. Filed by the Alliance for a Better Utah and five unnamed residents of Box Elder county, the lawsuit contests the constitutionality of the state's military installation development authority (Mida) and its approval of the project.The Controversial Approval ProcessThe alliance and residents are challenging the special entity that oversees the datacenter's proposal, arguing it bypasses normal democratic processes. "Under the Stratos plan, it would hold permanent, irrevocable control over public health, safety, taxation and land use across tens of thousands of acres of Box Elder county, with no voter recourse," plaintiffs' attorney David Irvine said in a statement. Initial proposals for the datacenter envisioned a 40,000-acre (16,200-hectare) campus in Utah's Hansel valley.Project Scaling and ConcessionsThe legal action comes as O'Leary has agreed to scale back the physical footprint for the project. Utah state senate president Stuart Adams later said O'Leary had agreed to a reduction in size, a commitment of water to the Great Salt Lake and "thousands of acres to be set aside for open space, wildlife protections and continued agricultural use." Adams added that the Stratos project is in its "earliest stages" and a full permitting and environmental review process will be carried out.Environmental and Economic ConcernsThe controversy highlights growing tensions between technological expansion and environmental preservation in the American West. Opponents have raised concerns about the project's potential impact on water resources in an already arid region, particularly its effect on the Great Salt Lake. Meanwhile, proponents like O'Leary emphasize the economic benefits, including the creation of construction jobs, high-paying tech positions, and billions of dollars of investment in the region.Geopolitical Dimensions and Future OutlookThe dispute has taken on geopolitical dimensions as O'Leary accused opposition groups of having links to "Chinese backed interests" and turned over evidence to federal authorities. This accusation comes as four congressional Republicans called on the FBI to investigate "foreign influence campaigns" working to slow American AI progress. Looking ahead, the legal battle and ongoing negotiations suggest that large-scale datacenter projects in the U.S. will face increased scrutiny regarding environmental impact, public consultation, and national security considerations.

Lead: A Fresh Set of Chess‑Inspired Brain TeasersToday the Guardian presents four quirky chess puzzles, curated by We Solve Problems, a UK charity that runs free maths circles for secondary‑school students. The puzzles range from graph‑theoretic parity proofs to knight’s tours, inviting readers to engage with mathematics through the lens of chess.Odd‑Numbered Games: Proving an Even Count of PlayersThe first puzzle asks participants to demonstrate that in any tournament where some players have played an odd number of games, the number of such players must be even. This classic result stems from the handshaking lemma in graph theory, where each game contributes two to the total degree sum.Knight’s Tour Challenge: From Bottom‑Right to Top‑LeftThe second puzzle explores whether a knight can start on the bottom‑right corner of an 8×8 board, visit every square exactly once, and finish on the top‑left corner. While a closed knight’s tour exists, the specific start‑end constraint makes the problem a subtle variation that tests spatial reasoning.Pawn Promotion Loop: Minimal Moves to Return HomeThe third puzzle asks for the fewest moves required for a pawn to leave its starting square, promote to a queen, and then travel back to its original position, assuming both players cooperate. Solving it involves coordinating pawn advancement, promotion, and a reverse queen’s path.Four‑Knight Swap on an Irregular GridThe final puzzle presents a strangely‑shaped grid where two pairs of knights must exchange places. A single insightful observation about symmetry unlocks a solution, illustrating how abstract thinking can simplify seemingly complex board problems.Scale of the Maths‑Circle InitiativeMore than a dozen cities across the UK host weekly maths circles.Each circle runs from September to May, targeting pupils aged 7‑11.Volunteer mentors are typically post‑graduates or PhD students.Why Chess‑Based Puzzles Matter for Youth EducationIntegrating chess puzzles into community programmes leverages the game’s universal appeal to foster logical reasoning, combinatorial thinking, and collaborative problem‑solving. By linking puzzles to popular documentaries about Judit Polgár and Hans Niemann, the charity taps into current cultural interest, boosting participation.Looking Ahead: Expanding Collaborative Math OutreachGiven the positive response, We Solve Problems plans to broaden its reach, potentially adding new puzzle formats and digital platforms. Continued media coverage could attract more volunteers and funding, ensuring that quirky challenges like these remain a staple of UK maths education.

Podcast Overview: Red‑Light Masks and Ageing ClaimsThe Guardian’s latest science podcast asks the question, “Is it true that red‑light therapy masks prevent wrinkles?” It invites listeners to explore the evidence behind a popular anti‑ageing gadget.What the Episode CoversIntroduction to red‑light therapy and its purported skin‑benefits.Interviews with dermatologists and researchers discussing clinical findings.Consumer perspectives on the rise of at‑home light‑mask devices.Current Evidence LandscapeWhile some small studies suggest modest improvements in skin texture, the podcast notes the lack of large‑scale, peer‑reviewed trials confirming long‑term wrinkle reduction.Implications for Consumers and the Beauty IndustryThe discussion highlights a growing market for home‑use light devices, prompting regulators to consider clearer labelling and efficacy standards.Looking Ahead: Research and RegulationFuture episodes may track upcoming clinical trials and potential guidance from health authorities on the safe use of red‑light masks.

The Lead Swiss startup VunaNexus has developed a technology to recycle urine into a natural fertiliser called Aurin, which is certified for use on all plants by Swiss and French authorities. The Urine Recycling Process The process involves collecting urine from special toilets, treating it, and concentrating its nutrients into a liquid fertiliser. The urine is collected from special toilets that separate the liquid from water, and then it is treated in a small plant in the basement of the building. The treatment process removes micropollutants and concentrates the valuable nutrients such as nitrogen and phosphorus. The Data Analysis The fertiliser, Aurin, is sold to farmers, used in gardens and on house plants, and is being tested by city authorities in Paris, Lausanne, and Zurich. VunaNexus says that if all the urine of people in Europe were recycled, it could cover around 30% of the nitrogen need. The Impact Analysis The fertiliser market has become increasingly vulnerable due to the conflict in Ukraine, which has sent fertiliser prices soaring. The UN has said that 45 million people are at risk of acute hunger because of the conflict in the Middle East as fertiliser prices soar and the supply shock threatens food security in some of the world's poorest countries. The Prediction VunaNexus needs to scale its fertiliser production and get paid for the wastewater treatment service it provides to become competitive on the agricultural market. The company is working on finding ways to deliver improved urban sanitation that can produce fertilisers, and its technology is being rolled out across a newly developed eco neighbourhood in Paris, which will be the biggest project of its kind in Europe.

The Rise of Reform UK's Billionaire Donors Keir Starmer may be relaxed about allowing millions from cryptocurrency billionaires to flow into Reform UK's coffers, but Labour MPs are tearing their hair out every time the quarterly data on electoral finance drops. The Scale of the Donations The latest figures show a further £7m went to Reform UK from just two men, Christopher Harborne and Ben Delo. Harborne, a crypto and aviation fuel investor based in Thailand, has given £15m to Reform and £5m to Farage personally. Delo, who co-founded the BitMEX trading platform, has become the UK's youngest self-made billionaire. The Data Analysis Harborne's donations to Reform UK: £15m Delo's donations to Reform UK: £7m (recent) and previously undisclosed amounts Labour's total private donations in Q1 2024: £6m The Impact Analysis The mood among many backbenchers about Reform's riches is panicked. 'It is unsustainable,' says another Labour MP, who would back any amendment to the government's new electoral finance bill to broaden the cap on overseas donors to all donors regardless of location. The Prediction Despite the opportunity of the new electoral finance bill, there is very little optimism among campaigners that the government will change its mind about a cap, or even an annual spending limit. However, some believe Andy Burnham, who backs electoral reform and a more consensual politics, may be more sympathetic to the idea of getting big money out of Westminster.