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Uber announced Thursday that it's introduced safety features in select markets, including a new emergency button.Denver is one of the cities where Uber is testing the new safety features. They're designed to keep riders connected if they need help, so even if they're riding alone, they're never really by themselves.Among the new features is an emergency button that connects users directly to a dispatcher. In some pilot cities, like Denver, once a rider presses the emergency button, their location and trip details will be automatically sent to the 911 dispatcher.There are other initiatives Uber is planning to roll out this summer across the country, and not just in pilot cities.In the "Safety Center," users can find tips from law enforcement, learn things like how Uber screens drivers, and insurance protections. "Trusted Contacts" allows riders to pick up to five friends and family members and share trip details with them during every ride. That way, they can follow you along and know when they've arrived.When it comes to drivers, Uber says it is also strengthening its screening process and will keep doing background checks on drivers every year. They're even investing in technology to let them know if a driver has a new offense.Uber says based on how the 911 pilot goes in Denver, they will decide whether or not to expand to other cities. 1417

US Customs and Border Protection closed road and pedestrian bridges on Sunday at the San Ysidro port of entry, one of the largest land border crossings between San Diego and Tijuana, Mexico.Groups of Central American migrants have been converging on the Mexican border city for days in their quest to gain entry to the United States. Their presence has drawn Mexican troops, protesters and fiery rhetoric from President Donald Trump and Mexican officials.As crowds amassed at San Ysidro, around 500 migrants overwhelmed federal and local Mexican police blockades and rushed toward the border, said freelance reporter Alfredo Alvarez, who is in the crowd.PHOTOS: Migrants converge on Tijuana-San Diego borderThe crowds were made up of men, women and a lot of children, Alvarez said.With bridge and pedestrian border crossings closed in both directions, the migrants headed for the cargo area where the railroad crosses, Alvarez said.They appeared to get close to the border wall, Alvarez said. He could not see from his position if the migrants had managed to get across the actual border.More demonstrations were planned on Sunday at San Ysidro, the busiest land port of entry in the Western Hemisphere, according to the US General Services Administration.The planned demonstrations on both sides of the border prompted CBP to deploy extra personnel to the border crossing, the agency said."The additional personnel, which included CBP officers, US Border Patrol agents, and Air and Marine agents, were recently deployed to the San Diego area from various areas around the country in preparation for the potential arrival of the caravan in Tijuana."The mayor of Tijuana said on Sunday that he would not let the migrants' actions damage the city's relationship with its neighbors across the border. Many residents of Tijuana work, study and visit the United States each day, and the border closures affect them, too, Juan Manuel Gastélum said on Twitter on Sunday.The mayor has said previously that the city cannot support the migrants.  2049

Twitter CEO Jack Dorsey knows the tech world has a problem. He's asking big questions like "How do we earn peoples' trust?""We realize that more and more people have fear of companies like ours," Dorsey said in an in-depth interview with CNN. He cited the "perceived power that companies like ours have over how they live and even think every single day."The following day, President Trump proved his point."Social Media is totally discriminating against Republican/Conservative voices. Speaking loudly and clearly for the Trump Administration, we won't let that happen," the president tweeted Saturday morning.Trump is tapping into a widely held belief on the right about biased tech companies. The claims have even become an issue on the campaign trail. "They are trying to silence us" is the new rallying cry.Companies like Facebook and Twitter say they understand the perception, but deny that their algorithms and employees discriminate against any particular political point of view."Are we doing something according to political ideology or viewpoints? We are not. Period," Dorsey said Friday. "We do not look at content with regards to political viewpoint or ideology. We look at behavior."But he knows some people do not believe him."I think we need to constantly show that we are not adding our own bias, which I fully admit is left, is more left-leaning," Dorsey said."We need to remove all bias from how we act and our policies and our enforcement and our tools," he added.In the interview, Dorsey kept coming back to the need for transparency, in much the same way that journalists talk about trying to explain news media processes to readers. Tech companies, he said, need to explain themselves too."I'll fully admit that I haven't done enough of that," he said. "I haven't done enough of, like, articulating my own personal objectives with this service and my own personal objectives in the world."Dorsey spoke candidly about the "fear" people feel about Silicon Valley.When asked "Do you feel as powerful as they think you are?" Dorsey said no, "but I do understand the sentiment. I do understand how actions by us could generate more fear, and I think the only way we can disarm that is by being a lot more open, explaining in a straightforward way why we make decisions, how we make decisions."His bottom line: "We need to be reflective of the service that we're trying to build."Trump, of course, is one of Twitter's highest-profile users. His Saturday morning tweets about censorship lined up closely with Tucker Carlson's Friday night segment titled "Coordinated censorship by big tech." Carlson cited the recent actions against far-right conspiracy theorist Alex Jones."Increasingly the people in charge use technology to silence criticism, mostly of them," Carlson said.To hear Carlson and other conservative commentators tell it, Twitter and its peers are quashing dissent on a daily basis.Trump tweeted that "they are closing down the opinions of many people on the RIGHT, while at the same time doing nothing to others."Trump did not mention Jones or Twitter specifically. But Jones has been in the news lately because CNN and other outlets have been highlighting how his social media posts violated the rules of Twitter and other sites.On Wednesday, Twitter placed some of Jones' accounts on a one-week time-out.Many observers have been skeptical about whether a temporary suspension will actually be effective against Jones.When asked about that in Friday's interview, Dorsey said "I don't know" if Jones will change his offensive behavior."We have evidence that shows that temporary suspensions, temporary lockouts will change behavior. It will change peoples' approach. I'm not na?ve enough to believe that it's going to change it for everyone, but it's worth a shot," he said.More importantly, he added, Twitter has to be "consistent with our enforcement.""We can't just keep changing" the rules "randomly, based on our viewpoints, because that just adds to the fear of companies like ours -- making these judgments, according to our own personal views of who we like and who we don't like -- and taking that out upon those people. Those viewpoints change over time," he said. "And that just feels random and it doesn't feel fair and it doesn't earn anyone's trust because you can't actually see what's behind it." 4353

VACAVILLE, Calif. (AP) — A pilot battling fire in central California died after his helicopter crashed as thousands of people in the San Francisco Bay Area were under orders to evacuate Wednesday amid a blistering heat wave now in its second week. Gov. Gavin Newsom blamed the extraordinary weather and thousands of lightning strikes for 367 known fires, including 23 major fires or groups of fires. He said the state has recorded nearly 11,000 lightning strikes in 72 hours. Ash and smoke filled the air over San Francisco, which is surrounded by wildfires burning in multiple counties to the north, east and south. 624

Uber announced Thursday that it's introduced safety features in select markets, including a new emergency button.Denver is one of the cities where Uber is testing the new safety features. They're designed to keep riders connected if they need help, so even if they're riding alone, they're never really by themselves.Among the new features is an emergency button that connects users directly to a dispatcher. In some pilot cities, like Denver, once a rider presses the emergency button, their location and trip details will be automatically sent to the 911 dispatcher.There are other initiatives Uber is planning to roll out this summer across the country, and not just in pilot cities.In the "Safety Center," users can find tips from law enforcement, learn things like how Uber screens drivers, and insurance protections. "Trusted Contacts" allows riders to pick up to five friends and family members and share trip details with them during every ride. That way, they can follow you along and know when they've arrived.When it comes to drivers, Uber says it is also strengthening its screening process and will keep doing background checks on drivers every year. They're even investing in technology to let them know if a driver has a new offense.Uber says based on how the 911 pilot goes in Denver, they will decide whether or not to expand to other cities. 1417

来源：资阳报