As the prediction market boom continues, backlash is growing, too, with Arizona filing criminal charges against Kalshi and public outcry after Polymarket traders threatened a journalist. Kalshi CEO Tarek Mansour posted a video on Wednesday of six men decked out in business casual doing push-ups on the sidewalk. "This is how Kalshi Q1 board meeting ended," he wrote on X. The board members are laughing and smiling in the video after their impromptu cardio session, and the mood is jubilant. The next day, it became clear that the team had ample reason to celebrate: Kalshi had just raised $1 billion at a $22 billion valuation, making the company worth on paper roughly double what it was only a few months ago.

In a meeting with Japanese Prime Minister Sanae Takaichi in the Oval Office, US President Donald Trump was asked why he didn't inform allies about his plan to attack Iran. Trump responded by raising Japan's attack on Pearl Harbor during World War II, saying, Who knows better about surprise than Japan? Watch: Sean Penn receives'Oscar' in Ukraine after skipping US ceremony The Academy Award winning US actor won his third Oscar on Sunday, but skipped the ceremony to visit Ukraine. Voiced by Domhnall Gleeson and directed by John Kelly, Retirement Plan is nominated for Best Animated Short Film at the 98th Academy Awards. 'I don't know why we're doing it' - Americans divided on Iran war Ten days since President Trump first announced the attack, people from across the US tell the BBC what they think the best outcome of the conflict could be.

'A new norm': BBC visits Doha market starting to fill up again two weeks into Iran war At the beginning of the conflict between Israel and the US, and Iran on 28 February, Doha's Souq Waqif market was almost empty, with those in the usually safe and stable capital shocked by the attacks in the region. Qatar's neighbouring countries have felt the impact of Tehran's retaliatory strikes, with at least 18 people killed across the Gulf states so far . Meanwhile, most of the strikes aimed at Qatar - some targeting US military bases - have been intercepted by air defences, with little damage done on the ground and no deaths reported in the country. As the conflict in the Middle East enters its third week, Doha's best-known market is starting to look busy again - and the BBC's Barbara Plett Usher has visited to ask people there how they are feeling. Voiced by Domhnall Gleeson and directed by John Kelly, Retirement Plan is nominated for Best Animated Short Film at the 98th Academy Awards.

U.S. President Donald Trump speaks to reporters aboard Air Force One on a flight to Washington on Sunday. SAN FRANCISCO - U.S. President Donald Trump on Sunday accused Iran of using artificial intelligence as a "disinformation weapon" to misrepresent its wartime successes and support. "AI can be very dangerous, we have to be very careful with it," Trump said to reporters on Air Force One shortly after he made a post on his Truth Social platform where he accused Western media outlets without evidence of "close coordination" with Iran to spread AI-generated fake news." The comments come amid renewed tensions between the Federal Communications Commission and broadcasters after Trump took aim at media coverage of the U.S. and Israel's war with Iran. FCC Chairman Brendan Carr on Saturday threatened to pull licenses of broadcasters who did not "correct course" on their coverage.

Kharg Island is a small rocky outcrop just 15 miles (24km) off the coast of Iran - but despite its size, it is one of the most critical pieces of Iran's energy infrastructure. US President Donald Trump recently posted on Truth Social that the US military had conducted what he called one of the most powerful bombing raids in the history of the Middle East, obliterating every military target on the island. BBC Security Brief's Mikey Kay breaks down why Kharg Island is a lifeline for Iran, and why it is so strategically important for the US. As turmoil continues in the Middle East, the price of crude oil rose to more than $100 a barrel on Monday. Watch: Ukrainian anti-drone'bullet' that could help defend Gulf The BBC's Diplomatic Correspondent, James Landale, is in Ukraine to see the latest anti-drone technology the country has to offer.

Latin megastar Bad Bunny performed a medley of his top hits at the Super Bowl on Sunday in a star-studded show that was criticised as terrible by the US president. The Puerto Rican singer, also known as Benito Antonio Martinez Ocasio, was joined on stage by a host of fellow music stars including Lady Gaga, Ricky Martin and Cardi B. Sitting in the stands, Kim Kardashian and Lewis Hamilton made their first major public appearance together, after weeks of speculation about their romance. The seven-time Formula 1 world champion and the reality TV star were spotted chatting and smiling together during the game, and were caught on video by NBC News. Fellow musical superstars Lady Gaga, Cardi B and Jessica Alba joined the dancers on stage alongside Bad Bunny, who was the world's most-played artist in 2025 on Spotify, according to the streaming service. Chilean-American actor Pedro Pascal and Puerto Rican singer Ricky Martin also joined the performance, which was populated by a largely pan-American crowd of celebrities.

President Donald Trump told NBC's Tom Llamas that the Iranian regime should be "very worried" at the moment amid high tensions between the two countries.

U.S. gives green light to Nvidia H200 chip exports to China U.S. President Donald Trump's administration will allow Nvidia to export its second most powerful AI chips to China after the company was previously barred from doing so. WASHINGTON - The administration of U.S. President Donald Trump on Tuesday gave a formal green light to China-bound sales of Nvidia's second most powerful AI chips, putting in place a rule that will likely kickstart shipments of the H200 despite deep concerns among China hawks in Washington. According to the regulations, the chips will be reviewed by a third-party testing lab to confirm their technical AI capabilities before they can be shipped to China, which cannot receive more than 50% of the total amount of chips sold to American customers. Nvidia will need to certify that there are enough H200s in the U.S., while Chinese customers must demonstrate sufficient security procedures and cannot use the chips for military purposes. In a time of both misinformation and too much information, quality journalism is more crucial than ever.

Could Ukraine hold a presidential election right now? Will Europe use frozen Russian assets to fund war? How can Ukraine rebuild China ties? 'Ukraine is running out of men, money and time' Russian mortality rates on the front lines are rising to levels that cannot be sustained by the current method of voluntary recruitment, Ukrainian figures suggest. "In December, 35,000 occupiers were eliminated - and this has been confirmed with video footage," said Ukrainian President Volodymyr Zelenskyy in a Monday evening address.

Some major retailers and independent stores have introduced AI body scans, CCTV or facial recognition equipment to identify crimes like shoplifting.