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A Pakistani delegation headed by Army Chief General Asim Munir arrived in Tehran on Wednesday, bearing a fresh message from Washington and urging the launch of a second round of negotiations between the United States and Iran. The effort comes as the two‑week ceasefire that halted hostilities last week is set to expire on April 22, leaving a narrow window to end a war that has claimed more than 4,000 lives across the Middle East, primarily in Iran and Lebanon. The initial round of talks, held in Islamabad on April 11‑12, marked the most significant direct engagement between Washington and Tehran in decades. Mediated by Pakistan, the sessions lasted over 20 hours and featured both indirect and direct exchanges between U.S. Vice President JD Vance and senior Iranian officials led by Parliament Speaker Mohammad Bagher Ghalibaf. Despite covering core issues—nuclear programme, sanctions relief, frozen assets and control of the Strait of Hormuz—the talks concluded without a memorandum, with Vance asserting that Iran “did not accept our terms” and that the U.S. requires a “fundamental commitment” to forego nuclear weapons. President Donald Trump has described the conflict as “very close to being over” and hinted that a second round could resume within days, possibly in Islamabad. However, Pakistan’s Prime Minister Shehbaz Sharif is currently on a four‑day tour of Saudi Arabia, Qatar and Turkey to rally regional backing, making a rapid return to Islamabad uncertain. U.S. officials have offered an “in‑principle” agreement to extend the ceasefire, yet a Reuters‑cited source confirmed that Washington has not formally committed to an extension. Meanwhile, Turkish President Recep Tayyip Erdogan expressed optimism, stating that “there can be no negotiating with clenched fists.” Key sticking points remain: Nuclear programme: The United States and Israel demand a complete halt to uranium enrichment, accusing Iran of weaponization despite a lack of public evidence. Iran maintains its enrichment is for civilian use and cites its obligations under the 1970 Non‑Proliferation Treaty. Strait of Hormuz: One‑fifth of global oil and LNG passes through this chokepoint. Since the February strikes, shipping through the strait has dropped by 95 %. Iran permits passage for “non‑hostile” vessels and seeks the right to levy tolls, while the U.S. insists on unrestricted navigation. Lebanon/Hezbollah: Iran demands that Israel cease its offensive against Hezbollah. While Tehran claims the ceasefire covers Lebanon, both the United States and Israel reject this, and Israel continues attacks on Hezbollah positions. Complicating the diplomatic landscape, President Trump announced a naval blockade of Iranian ports, adding pressure on Tehran and potentially hindering any imminent talks. With the ceasefire deadline looming and regional actors issuing mixed signals, the prospects for a renewed U.S.–Iran dialogue hinge on whether Pakistan can secure a consensus among the parties before the window closes.

President Donald Trump announced on Fox Business that he will dismiss Federal Reserve Chair Jerome Powell should the governor refuse to leave his post when his term concludes on May 15. The statement, made during an interview with Maria Bartiromo, underscored the president’s willingness to act, saying he “has wanted to fire him, but I hate to be controversial… he will be fired.” Legal scholars and policy analysts quickly cautioned that the president’s threat is not grounded in statutory authority. Skanda Amarnath, executive director of the think‑tank Employ America, told Al Jazeera that the administration is already losing a court battle over an attempt to remove Fed Governor Lisa Cook and would likely face the same outcome if it pursued Powell’s removal. The controversy emerges as the Senate Banking Committee prepares to consider Kevin Warsh, Trump’s nominee to succeed Powell. Warsh’s hearing is scheduled for next Tuesday, but his confirmation remains uncertain. North Carolina Senator Thom Tillis has pledged to block the nomination until the ongoing federal criminal probe into Powell’s conduct concludes. If the Senate fails to confirm a new chair, Powell would remain at the helm until a successor is appointed, extending the period of tension between the White House and the central bank. Trump also referenced a separate investigation into a costly Fed building renovation, noting that U.S. Attorney Jeanine Pirro has not indicated any change in the probe’s direction. However, a federal prosecutor later reported that the investigation uncovered no evidence of criminal wrongdoing. Critics argue that Trump’s broader agenda seeks to increase political control over the Fed’s seven‑member board, aiming to install members who share his economic outlook. Currently, the president has appointed three board members, and one seat—held by Governor Stephen Miran—has technically expired, which would need to be vacated for Warsh to join. Powell has framed the investigation as a pretext to undermine the Fed’s independence in setting monetary policy, a charge that resonates with concerns about preserving the central bank’s autonomy amid political pressure. Overall, the standoff highlights a clash between executive ambition and the institutional safeguards designed to keep monetary policy decisions insulated from short‑term political influence.

A group of 19 UN experts has denounced Israel's attack on Lebanon, which occurred a day after the US and Iran agreed on a ceasefire, as illegal and a blatant violation of the UN Charter. The experts are calling on UN member states to halt all arms transfers to Israel while there is credible evidence of serious violations of international humanitarian and human rights law.The condemnation comes as Israel continues to pound areas of southern Lebanon, resulting in at least 16 deaths, including four paramedics, according to Lebanese state media. The experts also expressed concern over the forced displacement of over 1.2 million people and the targeted destruction of homes, particularly in predominantly Shia areas of the south, which they described as a form of collective punishment that points to ethnic cleansing.The UN experts emphasized that Israel's actions constitute crimes against humanity and urged Israel to cease all military operations in Lebanon. The situation has been a point of tension in US-Iran negotiations, with Tehran pushing for Lebanon to be included in the ongoing ceasefire. Israeli Prime Minister Benjamin Netanyahu has stated that Israel will continue to target Hezbollah wherever required, despite diplomatic efforts towards a ceasefire.

The United States military announced on Tuesday that a missile strike carried out by U.S. Southern Command (SOUTHCOM) killed four people aboard a stationary vessel in the eastern Pacific Ocean. The attack, captured in a video showing a boat engulfed in flames, represents the fourth lethal engagement in the region within a four‑day span. SOUTHCOM, which oversees U.S. operations across Latin America and the Caribbean, labeled the deceased as “narco‑terrorists.” No evidence was provided to substantiate this claim, and the command offered only vague intelligence indicating the boat was traveling along known drug‑trafficking routes. This latest strike raises the cumulative death toll from the campaign to at least 175 individuals since early September, when former President Donald Trump authorized the operation to disrupt alleged cartel shipments to the United States. In the preceding 48 hours, two people were killed in a Monday strike and five more in two separate Saturday attacks, also targeting vessels in the eastern Pacific. The U.S. Coast Guard has reportedly halted the search for a survivor from the Saturday incidents. International legal scholars and human‑rights organizations argue that the U.S. actions constitute extrajudicial killings in international waters, often targeting civilian fishing boats rather than confirmed drug‑smuggling vessels. Legal experts stress that, even if some boats are involved in narcotics transport, the appropriate response should be prosecution under the rule of law, not lethal force. Critics also highlight the limited impact of the strikes on the U.S. fentanyl crisis, noting that the majority of the drug enters the United States via overland routes from Mexico, with precursors sourced from China and India. As the controversy deepens, questions linger about the legality, efficacy, and broader geopolitical ramifications of the U.S. maritime campaign against alleged narco‑terrorist activity in the Pacific.

Gray whales have historically been a rare sight in the San Francisco Bay. They migrate over 10,000 miles from Mexico's Baja California to the Arctic region, seldom stopping in the busy shipping corridor for prolonged periods. However, in recent years, this has changed in a dire way.A new study published in the journal Frontiers in Marine Science has found that gray whales in the bay have been dying at alarming rates, largely due to collisions with vessels. Eastern North Pacific (ENP) gray whales began to appear more frequently in the well-trafficked maritime corridor around 2018.According to researchers, at least 18% of gray whales that entered the bay from 2018 to 2025 have died. They determined that for more than 40% of the whale carcasses, the cause of death was blunt force trauma consistent with vessel strikes, prompting calls for renewed efforts to help avoid more fatal collisions.“It was historically very unusual for them to enter the bay, especially for longer amounts of time or consistently year after year,” said Josie Slaathaug, lead author of the study. There are whale subgroups known to hunt for food south of the Arctic, but a majority of the recently spotted whales feeding in the bay were not a part of these foraging clusters.A wave of new whale presence had not been observed in the waters since the late 1990s. Researchers have theorized that Arctic warming is disrupting food availability for the whales, driving them to hunt in new places such as the bay, although it remains unclear what exactly they may be eating there.Their potential new feeding corner, though, is a major shipping route. The true mortality rate for whales in the bay may be higher, hovering somewhere from 40% to 50%, Slaathaug said.In recent years, there have been several reports of dead whales that wash up on Bay Area beaches. The ENP gray whale population has been in decline due to malnutrition and starvation from climate-driven prey shifts in the Arctic. The Southwest Fisheries Science Center estimated a population total of about 13,000 whales, its lowest count since 1970.“It’s not unique to their migratory corridor that a lot of whales are dying,” Slaathaug said. “What is unique about San Francisco Bay and this study was that there was such a clear emerging cause of death.”Some local efforts are under way to reduce vessel collisions. The Marine Mammal Center has developed a program called Whale Smart, to educate vessel operators in the San Francisco Bay on how to interpret whale behavior to avoid close encounters.In Alaska, where vessels also pose a threat to the whale population, one fleet company partnered with WhaleSpotter, a company that uses AI and thermal imaging to detect the presence of whales, so they can change course well in advance.Last year, the Center for Biological Diversity, a conservation group, sued the US Coast Guard, which regulates vessel traffic off the California coast, for failing to analyze how vessel routes may harm whales and sea turtles.“This most recent study about the gray whales reaffirms that we have way underestimated the problem and we are not managing human activities well enough to avoid the whales,” said Catherine Kilduff, senior attorney at the center.Federal action is needed to reduce the fatal collisions, Kilduff said. According to the Endangered Species Act, the coast guard should be consulting with the National Marine Fisheries Service when setting shipping lanes to assess impact to marine wildlife.Kilduff also suggested mandatory speed limits for vessels. “There are voluntary speed reductions on the west coast, but there is evidence that those aren’t effective. The compliance rate isn’t high enough,” she said.A 2022 study co-authored by the National Oceanic and Atmospheric Administration found that the average speeds of large vessels had decreased from 2010 to 2019 in voluntary speed reduction zones. But, researchers determined that the cooperation rate of roughly 50% was lower than the amount needed to reduce vessel strike-related mortality to a level that maintains a sustainable whale population.“These whales are using the oceans in such a sophisticated way. We can learn so much from them, and if we can figure out ways to avoid killing them, I know that they’ll come back to healthy population levels,” Kilduff said.

The biggest public backer of World Liberty Financial, the crypto venture co‑founded by the Trump family, has publicly accused the firm of embedding a covert "backdoor blacklisting" feature that allows it to freeze token holdings at will. On Sunday, blockchain entrepreneur Justin Sun posted on X, alleging that World Liberty’s smart contracts for the WLFI token contain a tool that can unilaterally freeze, restrict, or confiscate any user’s assets without cause or recourse. Sun did not provide evidence, but said his own wallet was locked in September, making him the "first and single largest victim" of the alleged mechanism. World Liberty responded on X, stating, "We have the contracts. We have the evidence. We have the truth. See you in court, pal," and directed observers to its own posts for clarification. The company’s official risk disclosures do note that it may block or freeze addresses deemed linked to illegal activity or terms violations – a practice also employed by other crypto issuers such as Tether. Sun, who invested tens of millions of dollars in WLFI and later increased his stake to at least $75 million according to his 2025 posts, has not shared the purported blockchain records that supposedly show his wallet being blacklisted by a single administrative account. World Liberty, launched in 2024, claimed it would empower small investors through a decentralized‑finance app that has yet to launch. Reuters analysis indicated the venture generated **more than $460 million** for the Trump family in the first half of 2025. In March, the U.S. Securities and Exchange Commission settled a 2023 lawsuit against Sun for $10 million, alleging fraud and the sale of unregistered crypto securities. Sun made no admission of wrongdoing. The dispute highlights the murky regulatory environment for crypto in the United States, where the SEC has limited jurisdiction and has declined to comment on the legality of token‑freezing practices.

A recent set of studies has brought to light a concerning issue in social science research: up to half of all results published in reputable journals cannot be replicated by independent analysis. This problem is part of a broader challenge affecting various research fields, most notably social sciences and psychology, though concerns have also been raised in areas of biomedical research. The latest work, part of a seven-year project called Systematizing Confidence in Open Research and Evidence (Score), analyzed 3,900 social science papers. It found that newer papers and those published in journals requiring extensive sharing of underlying data were more likely to be reproduced. Additionally, medical research faces its own set of constraints, such as differing patient caseloads and limited sample sizes, which can make it resemble social sciences more than laboratory physics. Policymakers should be cautious of claims that don’t have a wide and robust base of evidence. The issue of reproducibility is crucial, as it looks at whether results can be recreated from the same data and methods, while replication tests whether the finding holds for new data in different contexts. However, politicians have increasingly looked to turn uncertainty into denial and recast normal scientific uncertainty as evidence of failure. Large-scale verification projects, like those undertaken by Score, are few and far between. Most academic researchers prioritize work that is more likely to enhance their careers. AI may help in deciding what to test, but it can’t reduce the costs and time involved in duplicating a piece of research. Not every failed replication signals a crisis; some findings don’t matter much, and replication studies can themselves be flawed. Greater transparency makes outright fraud more difficult and allows errors to be identified. Some argue that research “ultimately autocorrects,” but the long-term solution — shifting incentives so existing results are tested — would increase confidence. This requires restructuring of research culture and funding. For now, it remains largely notional. These studies should strengthen the case for change and serve as a warning. Social science is a powerful tool for understanding the world – and that trust will be built by acknowledging uncertainty, not repudiating it.

President Donald Trump announced on Fox Business that he will dismiss Federal Reserve Chair Jerome Powell if the central‑bank chief does not vacate the post by the statutory end of his term on May 15. “I’ll have to fire him, OK, if he’s not leaving on time,” Trump said, adding that he had previously held back the decision to avoid controversy. Powell, who has just over a month left in his tenure, has repeatedly been criticized by Trump for what the president calls a “bad job” and for refusing to lower interest rates despite Trump’s repeated demands since his return to the White House in January 2025. In January, Trump nominated former Fed governor Kevin Warsh to replace Powell. Warsh, known for his criticism of the Fed’s relatively high rates, is expected to align more closely with Trump’s push for rate cuts. His confirmation hearing before the Senate Banking Committee is slated for April 21, but the outcome remains uncertain. Republican Senator Thom Tillis of North Carolina, a member of the banking committee, has signaled he will block Warsh’s nomination until the Department of Justice concludes its criminal investigation into alleged misconduct surrounding the Fed’s headquarters renovation in Washington, D.C. Tillis described the probe as “reaching the point of absurd,” yet insists the investigation must be resolved before moving forward. The probe appears active: prosecutors made an unannounced visit to the construction site this week, as reported by the Wall Street Journal, underscoring the seriousness of the inquiry. During the same interview, Trump dismissed the investigation’s relevance, claiming the project was “probably corrupt, but what it really is is incompetence,” and questioned whether a $25 million renovation could balloon to a $4 billion expense. Powell responded in January with a rare public rebuke, labeling the investigation a “pretext” aimed at pressuring the Fed to lower rates. He warned that political intimidation could jeopardize the Fed’s ability to set monetary policy based on economic evidence. The legal backdrop adds another layer of uncertainty. The Supreme Court has yet to rule on Trump’s authority to fire a Fed board member without cause—a question that resurfaced after the president’s attempted removal of Fed governor Lisa Cook last summer. Justices appeared skeptical of such unilateral action during oral arguments in January. With the Fed’s independence at stake, the coming weeks will determine whether Trump’s threat translates into action, whether Warsh can secure Senate confirmation, and how the renovation investigation will influence the broader debate over political interference in U.S. monetary policy.

Leeds, the largest European city still without a mass‑transit system, may finally see a tram line – but not before the late 2030s. The latest West Yorkshire Mass Transit plan, championed by combined‑authority mayor Tracy Brabin, received a fresh £200 million in development funding, part of a broader £2.1 billion allocation for the region.City council leader James Lewis, who began his career on a 1993 work‑experience placement with the council’s highways department, says the new scheme differs from past attempts. Instead of squeezing trams onto existing bus routes, the proposal envisions a dedicated line that could “float over or under the M621 motorway, similar to the Docklands Light Railway,” linking the White Rose shopping centre, Elland Road stadium, Leeds railway station and St James’s Hospital.The Treasury’s independent review, however, forced the government to demand a fresh business case that proves the need for trams rather than buses. This procedural hurdle has added roughly two years to the timetable, pushing the projected opening into the late 2030s. Brabin acknowledges the setback, noting critics now claim the project is effectively “cancelled,” but she insists the work is merely delayed, not abandoned.Leeds’ transport woes date back to the removal of its historic double‑deck tram network in 1959 and the construction of the M621, which many locals blame for isolating the city’s south side. A 2025 Treasury review warned that previous “Supertram” proposals failed because they could not demonstrate sufficient value for money, leading to the withdrawal of funding in 2005 and the abandonment of a trolley‑bus plan in 2016.Supporters argue the tram is essential for unlocking massive regeneration. Leeds United investor Pete Lowy predicts the line could catalyse up to £1 billion of investment, including 2,500 new homes, retail and leisure space, and a 15,000‑seat stadium expansion. Northern Powerhouse Partnership chief executive Henri Murison points to the emerging South Gateway development in Bradford as evidence that transport‑led investment is already materialising.Critics remain sceptical. Leeds University transport professor Greg Marsden questions how an 18‑year‑long project can still be justified, while local residents voice doubts that a tram can ever be built in a city they consider “not big enough.” Tom Forth, co‑founder of data‑city firm Information Group, blames centralised decision‑making in London, arguing that devolved funding would accelerate delivery.In the meantime, the council is focusing on improving bus services, which will come under public control in 2027. Centre for Cities analyst Rob Johnson notes that increasing bus frequencies could immediately benefit the 390,000 residents currently poorly connected, potentially delivering more mobility gains than a tram in the short term.Nevertheless, Brabin maintains that trams are “more attractive, carry more passengers, and generate more jobs and growth” than buses, and she reaffirms her promise: “I promised a tram, and a tram is what we’re going to get.” The pledge to have “spades in the ground” by 2028 for preparatory works remains on the table, even as the project navigates the Treasury’s stringent process.