The Ukrainian president said Russia’s expected offensive in the east of the country had started; Russian missiles continued to hit Ukrainian cities; Kyiv responded to a European Union questionnaire as it seeks fast-track membership. Photo: Alex Chan Tsz Yuk/Zuma Press
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As fourth doses of Covid vaccines roll out, some are questioning whether the general population needs them. At the center of this debate are mysterious T-cells. WSJ’s Daniela Hernandez explains T-cells’ role in Covid immunity and how they relate to antibodies. Illustration: Laura Kammermann
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Footage shows explosions rocking Kyiv during the U.N. secretary-general’s visit to the Ukrainian capital; Russian troops have gradually seized more of eastern Ukraine; The House passed a bill to make it easier to send military equipment. Photo: Valeria Ferraro/Zuma Press
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As Elon Musk attempts to buy Twitter, WSJ looks back at Twitter’s past suitors, like Salesforce, Disney and Alphabet. Tech reporter Tim Higgins explains why those past conversations fell through and what's different this time. Illustration: Nikki Walker
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香蕉视频苹果下载Review & Outlook: The $44 billion purchase of Twitter is a gamble that could break Silicon Valley’s culture of progressive conformity. Images: Reuters/Getty Images/Billboard Composite: Mark Kelly
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The latest electric vehicles offer the power to charge household devices or other EVs using the energy stored in the car’s battery. WSJ’s George Downs explores how some companies are developing vehicle-to-grid technology that would enable energy to flow from the EV into the electricity grid itself. Illustration: George Downs
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Federal prosecutors alleged that Archegos Capital Management founder Bill Hwang and chief financial officer Patrick Halligan lied to banks to obtain billions of dollars in loans, which they then used to inflate the stock price of publicly traded companies. Photo: Seth Wenig/Associated Press
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Electric-scooter rental companies are hitting speed bumps in the U.S. over safety and other concerns. But in Tel Aviv, one in 10 residents has rented a Bird e-scooter, and the city appears to be embracing them. WSJ’s Jason Bellini takes a look at the challenges and potential lessons of the e-scooter craze.
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Luxury home tours on YouTube are exploding, and transforming the way high-end real estate is discovered and sometimes sold. YouTube personality Enes Yilmazer walks us through the making of a video for his channel, which gets an average of 15 million views a month. Photo: Michal Czerwonka for The Wall Street Journal
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香蕉视频苹果下载Bank of America Merril Lynch lead analyst, Elizabeth Suzuki, weighs in on why she likes Home Depot and Lowes.
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