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SAN DIEGO (KGTV) - As President Trump continues his call for a wall along the U.S. border with Mexico, experts say the one already in place is doing an excellent job at deterring illegal immigration.San Diego has had some form of a "wall" for decades. On a tour in June with 10News Anchor Steve Atkinson, Rodney Scott, the Chief of the Customs and Border Protection San Diego Sector, said a lot has changed in the last 20 years."I would argue during the 90s the extreme was total lawlessness," Scott said. "The fence behind me was chain link, riddled with holes."Scott described working as an agent and watching large crowds of people gather near the fence at twilight. They would then run across en masse once it got dark."There was a green flag to come out, and they would all rush when the sun went down," he said.That started to change in the later part of the decade.In 1993, then-President Bill Clinton signed Operation Gatekeeper into law. It was one of three operations to add infrastructure and technology to the border to help curb illegal immigration. Gatekeeper led to the start of the fence that's in place now.CBP says it led to a 75% drop in illegal immigration arrests over the next few years.But Scott said he still saw people making their way across, primarily through the area of the Tijuana River Estuary."Even up until the early 2000s, if you were standing here at night you would have seen little bonfires all over this area," he said. "There were trails as wide as cars, and that was purely from foot traffic."The next wave of border security started in 2006 when President George W. Bush signed the Secure Fences Act. It called for nearly 700 miles of physical fencing along the southern border.Government numbers show the flow of illegal immigrants peaked in the U.S. in 2006, with more than 1,000,000 arrests. In 2018, that number had gone down to around 396,000."That basically started closing the border," said Dr. Alejandra Castaneda, a leading researcher on immigration and the border for El Colegio de la Frontera Norte in Tijuana."Clinton started it, but it was really the Bush administration, especially after 9/11. And then the Obama Administration simply continued that project and finished it," she said.Castaneda said the wall built during that time was meant to be imposing."I think a lot of people in the U.S. that don't live at the border don't know that there is already a wall," she said.Because of Gatekeeper and Secure Fences, right now the U.S.-Mexico border in San Diego has 12 miles of double fencing that stretches from the coast to the Otay Mesa Port of Entry. After that, there are another 43 miles of "primary" fencing into and through the mountains in the eastern part of the county.Scott said the San Diego Sector has become the blueprint for the rest of the border."I call this our proof of concept," he says. "We've proved that border security works. And this is, by far, the most secure part of the U.S. border anywhere in the country." 3000

SAN DIEGO (KGTV) - California Governor Gavin Newsom talked with 10News Thursday in a one-on-one interview.He addressed key topics, including his revised budget plan for 3.5 billion in the upcoming fiscal year. The governor also talked about the death penalty in light of the Poway synagogue shooting, and if cases like it make the Governor rethink his decision to place a moratorium on the death penalty. Newsom also addressed the debate over gun control, his plan to provide more funding for healthcare for undocumented immigrants and an idea to impose a tax on water. 581

SAN DIEGO (KGTV) — County health officials say with the summer months well underway, they've seen an uptick in the number of children that have needed to be rescued from private pools after nearly drowning.Officials say there have been 49 rescues in private pools, beaches, and bays from March through July, compared to 37 in the same period in 2019 and 33 in 2018. Nearly all of those rescued this year have needed to be taken to the hospital for treatment.Of those 49 that occurred this year, 28 were in pools and 14 were in the ocean, lakes, or bays. The rest did not report a specific body of water. Many public pools have been closed since March due to the pandemic."Parents and guardians must take the necessary precautions to keep these incidents from happening," said Wilma Wooten, county public health officer, said. "Children who swim in pools at home are at higher risk of drowning, especially as parents struggle to supervise their children while continuing to work at home through the summer months because of the novel coronavirus."The county says it's important to teach children to swim, never leave a child unsupervised in or near water, avoid alcohol if you're swimming, and learn CPR.At home, the county recommends installing a fence around the pool and hot tub, installing pool alarms, and keeping an eye on drains and pool toys that could be a tripping hazard. 1389

SAN DIEGO (KGTV) — As temperatures warm up, there is some early research suggesting air conditioning units could increase the risk of spreading COVID-19.One team of researchers swabbed several kinds of air conditioning units and found traces of the virus on one out of every four samples.One of the authors, University of Oregon professor Dr. Kevin Van Den Wymelenberg, said the research “does give us some pause.”Air conditioning units bring in little outside air, particularly when temperatures are very hot, posing a risk that viral particles could be recirculated into rooms, Van Den Wymelenberg said.However, just because the study found traces of the virus in A/C units, it doesn’t prove people can actually get sick from the contaminated air because it’s not yet clear how many viral particles it takes to infect someone, he noted.“Nobody knows what that minimum threshold is so we need to take as many precautions as possible,” he said.Dr. Edward Nardell, a professor in the Departments of Environmental Health and Immunology and Infectious Diseases at the Harvard T.H. Chan School of Public Health, said air conditioning units can generate air currents that can carry large particles farther, similar to what researchers found contributed to the spread of the novel coronavirus disease in an air-conditioned restaurant in Guangzhou, China."You are not socially distanced as much, but you're re-breathing the same air that someone else just exhaled," Nardell said. "We call it rebreathed air fraction, and if someone is infectious, often asymptomatic, you're going to be rebreathing their small particles."This week, a group of 239 scientists from 32 countries asked the World Health Organization to update its COVID-19 guidance to reflect that the virus is airborne.On Thursday, the WHO released updated guidance acknowledging that airborne transmission can’t be ruled out, but stopped short of confirming that the virus spreads through the air.Instead, the WHO said the virus primarily spreads through droplet transmission, where larger particles come out of an infected person’s mouth, then fall quickly to the ground or onto surfaces. In airborne transmission, the particles stay floating for a long time.“I think they’re underweighting the importance of this airborne route based on the best available information,” said UC Berkeley Professor Emeritus William Nazaroff, one of the signatories of the letter to the WHO.He said in a poorly ventilated room, particles might linger for 30 minutes to an hour.Scientists say one of the best ways to protect yourself is to open windows, to increase the circulation of fresh air.Scientists say upgraded air filters in AC units and standalone air purifiers could also help.Germicidal lamps may also be effective, Nardell said. The technology is almost 100 years old, and has been proven effective in protecting against tuberculosis infection.The lamps, which shine ultraviolet light, are set up to shine horizontally, high up in the room to kill floating pathogens.Nardell said the technology can be deployed cheaply and easily in a number of settings.Additional reporting by Lauren Rozyla at WFTS 3159

SAN DIEGO (KGTV) — As the heat wave continues, San Diego families are doing their best to seek out ways to stay cool. Antonia Maryna Gomez is a mom of two in Chula Vista and said it’s been hard to find ways to stay entertained and cool while also remembering social distancing.She’s taken her three-year-old to the pool, visited splash pads, played with water balloons and tried the beach, but she said the crowds were too large for her comfort at the beach. It’s also been difficult to keep her excited son away from other people.RELATED: Flex Alert issued for California, SDG&E lists possible neighborhoods impacted“It’s hard especially because he’s a very social kid, he loves talking to people but it’s hard to tell your kid what it’s like six feet apart,” she said.Another option to find relief in her area is cooling centers. A cooling center is open at the old Sears at the mall in Chula Vista on Broadway. This facility is typically open Monday through Friday, but did open up the weekend of Aug. 15 because of the excessive heat. Tony Ramos works for the City of Chula Vista and said they’ve been able to provide resources that are hard to find because of the pandemic.“We show movies, we also have wifi access which is very important because a lot of our libraries, a lot of the places where people normally tap wifi, are closed,” said Ramos.RELATED: San Diego County opens cool zones amid heat waveFacilities like that will be crucial due to a Flex Alert issued for all of California through Wednesday. The Flex Alert goes from 3 p.m. to 10 p.m. every day, and everyone is asked to conserve energy to decrease demands during the heat wave and ideally prevent the need to cut off power in areas, however, consumers should be prepared for the likelihood of rotating outages.Between 3 p.m. and 10 p.m., the California Independent System Operator (ISO) is urging consumers to:Set air conditioning thermostats to 78 degrees, if health permits.Defer use of major appliances.Turn off unnecessary lights.Unplug unused electrical devices.Close blinds and drapes.Use fans when possible.Limit time the refrigerator door is open. 2136

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