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Véron Mosengo-Omba, the general secretary of the Confederation of African Football (Caf), has resigned after repeated calls for his removal and at a turbulent time for African football. His departure comes amid a crisis of confidence in the organisation's leadership, largely due to the decision to strip Senegal of the Africa Cup of Nations (Afcon) title and allegations of corruption.Mosengo-Omba, 66, said he was retiring but his exit follows a period of intense criticism of his tenure, including accusations of creating a toxic workplace culture at Caf. An investigation into staff complaints had previously cleared him of wrongdoing. He is of Congolese origin but a Swiss citizen and a former Fifa employee.In a statement, Mosengo-Omba said: 'After over 30 years of an international professional career dedicated to promoting an ideal form of football that brings people together, educates, and creates opportunities for hope, I have decided to step down from my position as secretary general of Caf to devote myself to more personal projects.'He expressed gratitude to Caf's president, Dr Patrice Motsepe, and his teams, and hoped that the progress made during his tenure would 'last and be sustained'. Mosengo-Omba is expected to run for the post of president of the Democratic Republic of Congo's football federation.The controversy surrounding Caf's leadership has led to Senegal's government calling for an international investigation into the organisation. Caf's competitions director, Samson Adamu, will take over as acting general secretary.Earlier this month, Motsepe admitted that Caf was struggling with questions over its integrity. The organisation is set to expand the Africa Cup of Nations to 28 teams from 24, with plans to introduce a Nations League annually from 2029.

Cambridge University is launching a four-week summer course in botany, inspired by a course taught by Prof John Stevens Henslow to Charles Darwin in the 1820s. The course will use original teaching materials, including plant specimens and illustrations, to teach students about botany.The course aims to address the gap in botany education in the UK, where the subject has largely disappeared as a standalone degree. Dr Raphaella Hull, acting head of learning for Cambridge University Botanic Garden, said that the course will teach students about botany using hands-on techniques and field excursions.The course is based on Henslow's pioneering approach to teaching botany, which emphasized the importance of observing and understanding plant diversity. Henslow's use of illustrations on his course was groundbreaking, and he is credited with influencing Darwin's later theory of evolution.Prof Sam Brockington, curator of Cambridge University Botanic Garden, said that the course is designed to be an immersive program in botany, and that Henslow's approach to teaching botany is still relevant today.

The US Treasury Department has taken a strong stance against the Financial Times (FT), formally requesting a retraction of a report that suggested Treasury Secretary Scott Bessent had discussed increasing oversight of the Federal Reserve in a manner similar to the Bank of England's model. In a detailed email to senior editors at the FT and its parent company, Nikkei Inc., Treasury officials disputed multiple claims in the story, criticizing the headline as misrepresenting the underlying reporting. The FT had reported on March 26 that Bessent had discussed adopting practices similar to the Bank of England, including regular communication between the Fed governor and the US Treasury Secretary over inflation targets. Treasury officials denied that Bessent had endorsed such views or discussed adopting similar practices in Washington. They also took issue with the headline, which stated that Bessent had 'praised' the Bank of England model for tighter oversight, a claim that did not appear in the text of the story. “The Secretary has never made any of the above statements in public or private,” Elliott Hulse, the acting assistant secretary for public affairs, wrote in the email. “At no time has the secretary ‘discussed tightening the US Treasury’s oversight of the Federal Reserve by adopting elements of the Bank of England’s model in a step that would shake up the central bank’s relationship with government.’” The FT responded by stating they were confident in the accuracy of their story, including US Treasury responses in the article. This incident highlights the sensitivity surrounding the Federal Reserve's political independence, especially following Donald Trump's repeated threats to fire Fed Chair Jerome Powell for not reducing borrowing costs as requested. Investors prioritize the Fed's independence in making policy decisions, as political pressure could lead to rapid inflation and subsequent sharp rate increases. The Treasury's actions mark an effort to discredit the FT report, with Bessent himself denying the claims on social media.

The Premier League's grueling schedule is taking its toll on teams, with many players appearing exhausted by the final whistle. The league's emphasis on hard work and endurance has led to criticism of teams like Chelsea, who have been accused of not running enough. However, distance run alone is largely meaningless as a metric, as tactics and team structure play a much bigger role in determining success.Coaches like Francisco Maturana and Enzo Maresca have implemented strategies that prioritize control and organization over sheer running ability. This approach can lead to teams running less, but still achieving success. For example, Liverpool's efficiency under Arne Slot last season was praised, as they won eight league games 2-0 and controlled the game with a sufficient cushion.The Premier League's unique strength in depth and competitiveness means that every game is a battle, leaving little opportunity for teams to ease off. Newcastle's jaded performance is a prime example, with the team looking worn out by their Champions League fixtures and cup runs. In contrast, Manchester United's absence of European football and early exits from cups have allowed them to benefit from a less demanding schedule.Ultimately, conserving energy and resting with the ball can be a positive strategy, as José Mourinho once termed it. The key to success is not just about how far a team runs, but how they play. Teams that prioritize control, organization, and tactics are more likely to succeed in the long run, even if they don't rack up the miles.

Actor Paul Dano is inviting fans to ask him questions in a special Guardian reader interview. This comes after a recent controversy sparked by Quentin Tarantino's comments on Dano's acting abilities, calling him 'weak sauce'. Tarantino's remarks, made on a podcast last year, led to a strong reaction from the film community, with George Clooney, Toni Collette, Ben Stiller, and Daniel Day-Lewis coming to Dano's defense. Dano has had a successful career with notable roles in films such as There Will Be Blood, Love & Mercy, 12 Years a Slave, and Prisoners. His versatility as an actor has been praised, particularly his ability to portray complex characters with a likable yet quietly unnerving quality. Dano is also set to appear in the upcoming political thriller The Wizard of the Kremlin, where he plays a young artist in 90s Russia who becomes an influential government official. The film, starring Jude Law as a young Vladimir Putin, is set to release in UK and Irish cinemas on April 17. Interested fans can post their questions for Dano by 6pm GMT on April 2, and his answers will be published shortly after.

Saudi Arabia has urged the US to ramp up attacks on Iran, a Saudi intelligence source has confirmed, while it is weighing a decision on whether to join the fight directly. The Saudi source confirmed reporting that the kingdom’s de facto leader, Crown Prince Mohammed bin Salman, has urged Donald Trump not to cut short his war against Iran, and that the US-Israeli campaign represented a “historic opportunity” to remake the Middle East.The intelligence source said Riyadh was not just calling for the military campaign to be continued, but to be intensified. Trump appeared to confirm the report about the crown prince’s role, telling journalists on Tuesday: “Yeah, he’s a warrior. He’s fighting with us.”There are no reports of active Saudi military involvement in the nearly four-week-old war so far, but a Saudi political analyst said the kingdom was likely to take that step if current peace efforts led by Pakistan failed.“What matters now is Iran’s decision,” Mohammed Alhamed, a Saudi geopolitical analyst, said. “If Iran engages seriously, there is still a path to contain escalation. If it rejects the conditions and continues its attacks, the threshold for Saudi action will be crossed.”Alhamed added that Saudi Arabia “is not reacting impulsively”.“It is calibrating its response and preparing for a scenario where escalation, if it happens, will be deliberate and decisive,” he said, adding that Saudi Arabia “has not been pushing for war.”“It has been trying to avoid being drawn into it, while keeping all options on the table,” he said.Saudi Arabia has come under Iranian drone attack, as part of Tehran’s response to the US-Israeli attack on 28 February. One drone strike a week ago hit an oil refinery in Yanbu on Saudi Red Sea coast.The attack on Yanbu signalled an Iranian warning that it could also threaten that economic lifeline.“I believe that Saudi Arabia still maintains cautious neutrality in the Iran-Israel-US war,” Hesham Alghannam, a Saudi defence expert told Agence France-Presse. But he added: “If the Houthis strike Saudi assets, Riyadh may shift toward defensive coalition support or limited retaliation.”The crown prince solidified his hold on power by cultivating a close relationship with Trump, but will now have to rethink Saudi reliance on the US for its security, observers have argued.“MBS [Mohammed bin Salman] has lost the bet on all his investments over the last several years,” Ellie Geranmayeh, senior policy fellow at the European Council on Foreign Relations said. “He financially invested in Trump and Trump’s family and his corporation and his White House, but at the end of the day the views of the Saudis and of the whole Gulf have been sidelined by the wishes of Benjamin Netanyahu.”

Pakistan has confirmed that it is acting as a mediator in ongoing talks between the United States and Iran. This development comes at a time when tensions between the US and Iran have been escalating. The mediation efforts by Pakistan are seen as a crucial step in attempting to ease the strained relations between the two countries.The role of Pakistan in these talks highlights its growing influence in regional diplomacy. Iran and the US have been at odds over various issues, including Iran's nuclear program and its support for certain militant groups. These tensions have had significant implications for the stability of the Middle East.By facilitating dialogue, Pakistan aims to contribute to a reduction in hostilities and promote a more stable environment in the region. The success of these mediation efforts could have far-reaching consequences for international relations and security.

The ongoing conflict between the United States, Israel, and Iran has created a significant disruption in the global helium supply chain, affecting approximately one-third of worldwide production. This critical resource, essential for both medical diagnostics and advanced manufacturing, faces unprecedented challenges as shipping restrictions and production halts impact markets worldwide.The disruption stems primarily from Qatar, the world's largest helium producer, which accounts for about 63 million cubic meters of the roughly 190 million cubic meters of helium produced globally annually. Following Iranian attacks on Qatari energy infrastructure, QatarEnergy has announced a 14% annual reduction in helium exports, citing damage to its LNG facilities that also produce helium as a byproduct.The Strait of Hormuz, a critical maritime chokepoint, has seen traffic nearly grind to a halt after Iranian officials announced new transit restrictions. This waterway serves as the primary export route for Qatar's helium, with no viable alternative maritime outlet available.The impact of this helium shortage extends across multiple sectors. MRI machines, which rely on helium's unique cooling properties, face potential operational delays, while the semiconductor industry—a cornerstone of modern technology—also depends on this irreplaceable resource for chip manufacturing. South Korea, Japan, Taiwan, and China stand as the most vulnerable economies, being the largest consumers of Gulf-sourced helium.Market analysts project that helium prices could surge by 10-50% depending on the duration of the supply disruption, with buyers lacking long-term contracts experiencing the most immediate price increases. The medical industry, in particular, has been attempting to develop alternatives, including helium-free MRI technologies and helium recycling systems, though most current systems remain dependent on liquid helium.The United States, as the largest global helium producer at over 40% of worldwide supply, cannot fully compensate for the Gulf shortfall. Even North American consumers face challenges, with major distributors like Airgas already cutting shipments by half and parent company Air Liquide reallocating its supply chain to access helium from other regions.This helium crisis represents the fifth significant supply shortage since 2006, highlighting the vulnerability of global supply chains for critical industrial materials with no artificial substitutes. The situation underscores how geopolitical conflicts can have far-reaching consequences beyond traditional energy markets, potentially impacting healthcare accessibility and technological innovation worldwide.

New York City's public hospital system has announced that it will not be renewing its contract with Palantir, a data analytics and AI firm, amid growing controversy over its government contracts in the UK. The decision comes as health officials in the UK express concerns over data privacy issues related to Palantir's £330m agreement with the National Health Service (NHS).The contract between NYC Health + Hospitals and Palantir, which focused on recovering money for insurance claims, was set to expire in October. According to documents shared with the Guardian, Palantir has paid nearly $4m to the hospital system since November 2023. The contract allowed Palantir to review patient health notes and help the hospital claim more money in public benefits through programs like Medicaid.Despite assurances from NYC Health + Hospitals that there was an 'absolute firewall' preventing Palantir from sharing information with US Immigration and Customs Enforcement (ICE), activists and data privacy experts have raised concerns over the potential risks of Palantir accessing de-identified patient data for purposes other than research.As New York City prepares to part ways with Palantir, the company is expanding its influence in the UK, despite backlash from activists and lawmakers. Palantir has contracts with the British government's Ministry of Defence and is seeking access to sensitive national financial regulation data through a contract with the Financial Conduct Authority.Medact, a health justice charity, has raised concerns that Palantir's software could enable 'data-driven state abuses of power', including US-style ICE raids. In response, Palantir has denied that its data could be used in this way, citing that it would be illegal and a breach of contract.The decision by NYC Health + Hospitals to drop Palantir has been hailed as a victory by activists, who are now calling on the NHS to follow suit and terminate its £330m contract with the company. The 'Purge Palantir' campaign, which involves nurses, pro-Palestinian activists, and social and climate justice groups, aims to stop Palantir from contracting with government agencies, universities, and corporations.