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US President Donald Trump personally asked Chinese President Xi Jinping to help in the case of three American college basketball players accused of shoplifting last week, a White House official said.The three UCLA freshmen -- LiAngelo Ball, Cody Riley and Jalen Hill -- were arrested last week?while their team was in Hangzhou ahead of the team's season opener in Shanghai. They've been questioned about stealing sunglasses from a Louis Vuitton store near their hotel.UCLA's trip coincided with Trump's two-day state visit to the Chinese capital, Beijing. The official added that President Xi said he would look into it. 638

Uber doesn't plan to renew its self-driving vehicle permit in California.The news comes less than two weeks after a self-driving Uber SUV struck and killed 49-year-old Elaine Herzberg as she walked her bicycle across a street in Tempe, Arizona. After the tragedy, the company halted testing of its self-driving cars on roads in North America.Uber's self-driving permit in California goes until March 31 -- and the company said it will let the permit expire."We decided to not reapply for a California DMV permit with the understanding that our self-driving vehicles would not operate on public roads in the immediate future," an Uber spokesperson said in a statement to CNN on Tuesday.Uber's statement comes after several news outlets, including CNN, obtained a letter sent by DMV deputy director and chief counsel Brian Soublet to Uber's public affairs manager, Austin Heyworth on Tuesday regarding its permit.Soublet wrote that if and when Uber applies for a new autonomous vehicle testing permit, it will "need to address any follow-up analysis or investigations from the recent crash in Arizona an may also require a meeting with the department."The news of the letter was first reported by the San Francisco Chronicle.The Tempe Police Department and the National Transportation Safety Board have launched investigations into the crash.Last week, Boston's government asked self-driving companies operating in the city to halt operations while safety procedures are reviewed. On Monday, Arizona officially suspended Uber's self-driving car tests in the state despite that Uber had already paused its operations there. 1643

VENTURA, Calif. (AP) — A California church held indoor worship service Sunday morning despite a judge’s temporary restraining order that bars the church from doing so. The pastor led a 9 a.m. service in defiance of coronavirus health orders at Godspeak Calvary Chapel in Ventura County’s Newbury Park. A livestream of the morning’s service showed a mask-less pastor and a musician standing before at least two dozen worshipers — most of whom were also not wearing masks. It was not clear from the livestream if they were standing 6 feet apart. Two other services are planned for later Sunday. 600

Twitter CEO Jack Dorsey says "we're ready to question everything" about the social networking site that has been overrun by spam, abuse and misinformation.Dorsey says he and his team are working extensively behind the scenes to stamp out some of the harassment and hate speech that has generated bad headlines lately.But it is a long-term effort, he says, and he is reluctant to commit to an exact timetable for certain changes to Twitter's foundation.In twelve years, "we've changed a lot. But we haven't changed the underlying fundamentals," Dorsey told CNN in an in-depth interview at the company's headquarters on Friday.The basic fundamentals are what he is examining now. For instance: What does Twitter incentivize its users to do?"Every product decision we make is 'telling' them to do something," Dorsey said.So he is thinking about how to help users follow topics and hashtags, not just people."We are aware of some of the silos and how we're isolating people by only giving them crude tools to follow accounts. We need to broaden our thinking and get more back to an interest-based network," he said.Related: Twitter's Jack Dorsey: 'We are not' discriminating against any political viewpointDorsey is also rethinking how follower counts and "likes" on posts are displayed, because the race to gain followers and likes may encourage outrageous behavior.His view is that Twitter needs to be much more "transparent" and open about its actions. But that transparency, some of which was on display during Dorsey's media tour this month, means asking questions without actually answering them.Among the questions Dorsey asked in the CNN interview: "How do we earn peoples' trust?" and "How do we guide people back to healthy conversation?"While he may get credit for asking big, philosophical questions about how his site operates, Dorsey remains vulnerable to criticism about Twitter's inaction.He responded to that by saying "we are taking a lot more action than we ever have in the past." But much of the action is invisible to users, he asserted.For example: The disabling of bot networks and other suspicious accounts. Dorsey said Twitter challenges "10 million accounts every single week to see if they're automations or humans," and takes action accordingly.But Twitter's stock plunged last month when its quarterly earnings report showed a decline in user growth, which the company attributed to its efforts to clean up the site, akin to gardeners removing weeds.Nonetheless, Dorsey is committed to what he calls "conversational health" -- the quality of an exchange on Twitter -- which he is trying to measure with the help of two research groups. He said investors should take a look at the long-term trends: "We see this as necessary and right and we believe in it and we have conviction around it, and we'll take the hit in the short term."Related: Twitter is purging suspicious accounts from your follower countHe also asserted that "over the short term, a lot of this work is invisible, and over the long term, it starts to add up."As for some of the specific changes, like a rethinking of the like button, Dorsey was reluctant to talk about a timeline."We're looking and thinking about all these things right now," he said. So: By the end of the year? "I worry about a time frame like that," he said, "because we also need to take into consideration -- we're a small company. I mean we, in comparison with our peers, we're a small company, but we have this outsized impact and I believe, importance."Later, he added, "We have to understand first the problem we're trying to solve, like what incentives we actually want to drive; not just what we want to remove, but what we want to drive." But he said he knows he wants incentives "that encourage people to talk and to have healthy conversation." 3824

United Airlines is sending layoff warnings to 36,000 employees, nearly half its U.S. staff. It's the clearest signal yet of how deeply the COVID-19 pandemic is hurting the airline industry. United officials said Wednesday that they still hope to limit the number of layoffs by offering early retirement, but they have to send notices this month to comply with a law requiring that workers get 60 days' notice ahead of mass job cuts. The furloughs would include 11,000 flight attendants, 11,000 customer service and gate agents, 5,500 maintenance workers and 2,250 pilots. United officials said the notices cover 45% of its U.S. employees.Air travel in the U.S. dropped about 95% by mid-April. It has recovered slowly but remains down about 75% from a year ago. 768