Comment on Barnes & Noble sued by Microsoft

Stefan Vorontsov runs Humanity, a Ukrainian volunteer organization that coaches people who want to flee Russian-occupied territories and helps them plan their evacuations. Stefan VorontsovStefan Vorontsov is a Ukrainian volunteer who secretly coaches those who want to leave occupied Ukraine. He told BI what it's like to evacuate and prepare for scrutiny from border authorities.

A Sephora store in Chongqing, China. Cheng Xin/Getty ImagesSephora's CEO said teenagers only need three products in their skincare routine."Just cleanser, moisturizer, and SPF for a 13-year-old," CEO Artemis Patrick said. Gen Alpha customers have gone viral for snapping up Sephora's expensive skincare products. Sephora's CEO said teenagers only need three skincare products and need to stop buying products inappropriate for their age.

A South Korean lawmaker said on Monday that Seoul's intelligence estimated that some 3,000 North Korean troops have been killed or wounded in Kursk. KIM WON JIN/AFP via Getty ImagesAll of North Korea's troops in Kursk could get wiped out by April, given current losses, a think tank said. Analysts cited casualty reports from Ukraine and South Korea, estimating 92 losses per day for Pyongyang.

China's foreign ministry says it is sending Vice President Han Zheng to attend Trump's inauguration. The Trump transition team initially invited President Xi Jinping to the event. Huang Jingwen/Xinhua via Getty ImagesThe Chinese foreign ministry says Vice President Han Zheng will attend Donald Trump's inauguration. The Trump team said in December that it had invited Chinese leader Xi Jinping, but Xi will not attend.

Chris Unger/Zuffa LLC; Eugene Gologursky/Getty Images for The New York TimesElon Musk and Jeff Bezos exchanged friendly tweets after rocket launches on Thursday. The billionaires have had a long-standing rivalry over space ambitions and more. Their recent interactions suggest a possible end to their long public feud. Elon Musk and Jeff Bezos may no longer be enemies.