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TIJUANA, Mexico (AP) — Migrants in a caravan of Central Americans scrambled Wednesday to reach the U.S. border, arriving by the hundreds in Tijuana, while U.S. authorities across the border were readying razor wire security barriers.Mexican officials in Tijuana were struggling to deal with a group of 357 migrants who arrived aboard nine buses Tuesday and another group of 398 that arrived Wednesday."Mexico has been excellent; we have no complaint about Mexico. The United States remains to be seen," said Josue Vargas, a migrant from Honduras who finally pulled into Tijuana Wednesday after more than a month on the road.U.S. Defense Secretary Jim Mattis, meanwhile, went to visit U.S. troops posted to the border in south Texas and said the deployment provides good training for war. President Donald Trump has said the caravan of migrants amounts to an "invasion."RELATED: Video shows people climbing on top of fence at Border Field State ParkThat didn't deter arriving groups of Central Americans from going to a stretch of border fence in Tijuana to celebrate.On Tuesday, a couple of dozen migrants scaled the steel border fence to celebrate their arrival, chanting "Yes, we could!" and one man dropped over to the U.S. side briefly as border agents watched from a distance. He ran quickly back to the fence.Tijuana's head of migrant services, Cesar Palencia Chavez, said authorities offered to take the migrants to shelters immediately, but they initially refused."They wanted to stay together in a single shelter," Palencia Chavez said, "but at this time that's not possible" because shelters are designed for smaller groups and generally offer separate facilities for men, women and families.But he said that after their visit to the border, most were taken to shelters in groups of 30 or 40.With a total of three caravans moving through Mexico including 7,000 to 10,000 migrants in all, questions arose as to how Tijuana would deal with such a huge influx, especially given U.S. moves to tighten border security and make it harder to claim asylum.On Wednesday, buses and trucks carried some migrants into the state of Sinaloa along the Gulf of California and further northward into the border state of Sonora.The bulk of the main caravan appeared to be about 1,100 miles (1,800 kilometers) from the border, but was moving hundreds of miles per day.The Rev. Miguel Angel Soto, director of the Casa de Migrante — House of the Migrant — in the Sinaloa capital of Culiacan, said about 2,000 migrants had arrived in that area. He said the state government, the Roman Catholic Church and city officials in Escuinapa, Sinaloa, were helping the migrants.The priest also said the church had been able to get "good people" to provide buses for moving migrants northward. He said so far 24 buses had left Escuinapa on an eight-drive to Navojoa in Sonora state. Small groups were reported in the northern cities of Saltillo and Monterrey, in the region near Texas.From Sonora, some migrants said they had already caught buses from to Tijuana.About 1,300 migrants in a second caravan were resting at a stadium in Mexico City, where the first group had stayed last week. By early Wednesday, another 1,100 migrants from the third and last caravan had also arrived at the stadium.Like most of those in the third caravan, migrant Javier Pineda is from El Salvador, and hopes to reach the United States. Referring to the first caravan nearing the end of the journey, Pineda said "if they could do it, there is no reason why we can't."It is unclear whether the two caravans would merge or when they would set out on the road north.Many say they are fleeing poverty, gang violence and political instability in the Central American countries of Honduras, Guatemala, El Salvador and Nicaragua.Mexico has offered refuge, asylum or work visas, and its government said Monday that 2,697 temporary visas had been issued to individuals and families to cover them during the 45-day application process for more permanent status. Some 533 migrants had requested a voluntary return to their countries, the government reported.The U.S. government said it was starting work Tuesday to "harden" the border crossing from Tijuana ahead of the caravans.Customs and Border Protection announced it was closing four lanes at the busy San Ysidro and Otay Mesa ports of entry in San Diego, California, so it could install infrastructure.That still leaves a substantial path for the tens of thousands of people who cross daily: Twenty-three lanes remain open at San Ysidro and 12 at Otay Mesa.San Ysidro is the border's busiest crossing, with about 110,000 people entering the U.S. every day. That traffic includes some 40,000 vehicles, 34,000 pedestrians and 150 to 200 buses.___Maria Verza contributed from Escuinapa, Mexico. 4804

There will be two new headquarters for Amazon, with 25,000 people in each location.Amazon has not announced which two cities the headquarters will be in, but that information is expected later this week, according to?the Wall Street Journal.The HQ2 split will happen because of a lack of technology talent.It has been more than a year since the company sought proposals from cities desiring to be home to the headquarters. Amazon's current headquarters is in Seattle and has led to problematic traffic and increased housing costs. Those concerns spurred the need to move and to split into two locations, the WSJ reports.  639

There are new concerns about people's ability to understand information regarding the COVID-19 pandemic.Dartmouth College researchers found many health agencies are publishing coronavirus information at a 10th grade reading level.The Centers for Disease Control and Prevention, as well as the American Medical Association and National Institutes of Health say information should not be published at more than an 8th grade reading level.Researchers say it could lead to more people missing information.“If high quality information, in terms of content, like with the CDC, WHO and other official organizations put out, if that is difficult to access, difficult to understand, then that does create a potential or an incentive for looking at less trustworthy sources,” said Joseph Dexter, Neukom Fellow at Dartmouth College.Researchers say health agencies need to use short and direct sentences when writing health information. They should also use short paragraphs, avoiding jargon and technical terms.It's also important to think about how information can be presented visually on a screen.Right now, it's not required that states follow these guidelines, but it is highly recommended. 1192

Those “I voted” stickers we see every election season are becoming more commonplace. Now, the Centers for Disease Control and Prevention (CDC) wants to do something similar with the COVID-19 vaccine.The CDC suggested that people receive a sticker that says, “I got my COVID-19 vaccine.”Other groups are also starting similar initiatives.Adam Wiatrowski founded Courage Thru COVID, a group that's trying to raise awareness not only about coronavirus, but also the vaccine.The group created wristbands to give out to folks who have gotten the shot. Their goal is to create positivity.“We’re all in this together, and our goal with the Courage Thru COVID wristband is to give people an opportunity to show their unity and show their support for each other,” said Wiatrowski.The wristbands are a bright, neon green with the words “Courage Thru COVID” printed on them. Right now, only hospitals in Minnesota are getting them, but Wiatrowski hopes to expand the effort across the country.There are questions over whether this would really encourage people to get vaccinated. Psychology experts say think so, because there’s power in numbers. If we see a lot of people sporting these stickers, we're likely to be motivated enough to get the vaccine.The stickers can also create a sense of belonging.“That sense of belonging does cause us to feel, again, more motivated to belong to that group, to do what those other people around us are doing. But also, to stay true to the norms of that group by trying to convince others that those are the correct actions to take and norms to adopt,” said Robert Cialdini, psychology and marketing professor at Arizona State University.Cialdini is confident the stickers will encourage people to get vaccinated, but he is unsure at this point of how big of a difference they'll make.He adds another thing that could motivate people is seeing celebrities endorse the vaccine. He says the science behind this is simple – people are likely to see something as more appropriate if they see someone they like doing it. 2051

TOKYO (AP) — The five Olympic rings are back in Tokyo Bay. The rings were removed for maintenance four months ago shortly after the Tokyo Olympics were postponed until next year because of the COVID-19 pandemic. The rings are positioned on a barge and stand about 15 meters tall and 33 meters in length — about 50 feet tall and 100 feet in length. The Olympic rings will be lighted at night and are situated in the shadow of Tokyo's famous Rainbow Bridge. The Olympics are to open on July 23, 2021, followed by the Paralympics on Aug. 24. Organizers are confident that 15,400 Olympic and Paralympic athletes can safely enter Japan during the pandemic. 659