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SAN DIEGO (KGTV) - The Department of Homeland Security is responding to the caravan of Central American immigrants prepared to enter the United States through the border with Mexico.At least 600 people from Guatemala, Honduras, El Salvador, and Nicaragua are traveling to Tijuana, according to freelance journalist Jorge Nieto. About 100 arrived last night. Eventually the group will enter the U.S. at the San Ysidro port of entry.Homeland Security Secretary Kirstjen Nielsen released a statement on the caravan.“DHS continues to monitor the remnants of the ‘caravan’ of individuals headed to our Southern border with the apparent intention of entering the United States illegally. A sovereign nation that cannot – or worse, chooses not – to defend its borders will soon cease to be a sovereign nation. The Trump Administration is committed to enforcing our immigration laws – whether persons are part of this ‘caravan’ or not.”RELATED: Migrant caravan heads toward US-Mexico borderDHS warned members of the caravan that they may be turned over for prosecution under illegal entry laws. Anyone seeking asylum may be detained while their claims are processed, DHS said.“Again, if you enter the United States illegally, let me be clear: you have broken the law. And we will enforce the law through prosecution of illegal border crossers,” Nielsen stated.The DHS statement encouraged those with asylum claims to seek protection in the first safe country they enter, naming Mexico as a possibility.SLIDESHOW: Migrant caravan travels through Mexico“While we are committed to doing everything we can on the border to secure our nation, we need Congress to do their job as well.  I join the President in asking Congressional leadership to work with the Administration to pass legislation to close the legal loopholes that prevent us from securing our borders and protecting Americans. I stand ready to work with any member who in good faith seeks to support DHS’s mission and secure our country,” Nielsen wrote.RELATED: Hundreds of migrants reach Tijuana 2060

SAN DIEGO (KGTV) -- The convention center expansion initiative will not make the November ballot even though San Diego Mayor Kevin Faulconer gave it his best shot.Faulconer's ballot measure proposal to fund the convention center expansion, get homeless people off the streets and fix roads needed five votes to pass.  It only got 4.The vote came after Faulconer asked council to convene a special meeting with just 24 hours' notice.  The mayor requested it after learning there weren't enough valid signatures collected to place the measure on the November ballot. 602

SAN DIEGO (KGTV) — The latest ABC News national polling average shows former Vice President Joe Biden leading President Donald Trump by 8 points.But a lot of people are wondering, can we trust the polls after what happened in 2016?The last time Donald Trump was on the ballot in 2016, the polls had him trailing former Secretary of State Hillary Clinton by an average of 3.2 percentage points, and we know what happened.However, pollsters weren’t off by as much as you might think.“At the national level, the polling was, remarkably, given all things, precise,” said Jay Leve, CEO of the polling firm SurveyUSA.Trump lost the popular vote by 2.1 points instead of 3.2, the most accurate these national polls had been in 80 years, according to an analysis by the American Association for Public Opinion Research.Where the polls did miss badly was at the state level, particularly in Pennsylvania, Michigan and Wisconsin, three states that were critical in the Electoral College.Leve said there were several reasons for the polling problems at the state level.“Polling is a very expensive undertaking and so it is not possible for the handful of media organizations with pockets deep enough to afford a public opinion poll to be able to poll in every critical battleground state,” he said.Another reason? “Some of it has to do with what’s called ‘weighting,’” he added.To understand weighting, you have to know the two R’s of a good poll: it needs to be representative and random.Random samples are critical to the accuracy of polling, and you can look to your kitchen for an example why. Picture adding salt to a soup. If you mix it right, you can check the taste with any one spoonful -- you don’t have to eat the entire pot. That’s because each spoonful is a truly random sample.If you don’t mix the salt in, you could easily wind up sampling a part of the soup without any salt.When you’re trying to sample the American public with a political poll, either over the phone or most of the time now online, it’s more challenging to get a perfectly random spoonful.“The challenge is to find the individuals in the right numbers and secure their cooperation. Those two things don’t automatically work in sync,” Leve said. “People don’t want to be disturbed. They want privacy and a pollster by definition is an interruption.”It turns out, certain people tend to resist taking polls, while others are more willing. Research shows people with college degrees are more likely to respond to surveys than high school grads.That means surveys run the risk of not being representative of the voter population at large, and Leve said that kind of imbalance played a big role in 2016.To make a sample representative, pollsters gather up as many responses as they can, then adjust them with a process called weighting -- basically boosting or shrinking responses from people with certain demographics to match census data and the expected turnout.“The weighting criteria that was in issue in 2016 was whether you had enough non-college educated white voters in your sample,” Leve said. “If you did, you got the Trump forecast correct.”State polls that didn’t weight by education level missed badly, because to an extent far greater than in previous elections, voters with a college education broke for Clinton while voters with a high school education backed Trump.There’s some evidence that pollsters have learned from their 2016 mistakes. Polling in the 2018 midterms was very accurate -- a full point better than the average over the last 20 years.So can we trust the polls this time around?Leve says yes, as long as you remember that polls are just a snapshot in time and Donald Trump is difficult to predict.“Don’t be surprised if something happens in the final four, five, six days of the election, right before November 3rd, that’s so unforeseeable that neither you nor I nor anyone watching us could have imagined. And if so, that’s going to throw all the polls off,” he said. 3979

SAN DIEGO (KGTV) - The California Department of Alcohol Beverage Control (ABC) made changes making it easier for businesses to sell alcohol.This week, the agency made major changes allowing restaurants to sell beer, wine and pre-mixed drinks or cocktails for pick-up or delivery as long as it is sold with food and has a secured top.While the changes will help many business owners, some San Diego bar owners say the ABC needs to take a look at other parts of the law as well."I know my seven employees are hurting, and I am too," said Tony Raso of Bar Sin Nombre.Raso said when the statewide order came down to close, he did. He has bar food he can sell, but where his problem comes in is with the beer that's already on tap."My struggle has been with all of the draft beer," he said. "We're primarily a draft house, and most of my money is in draft inventory."According to the ABC's website, restaurants "selling beer, wine, and pre-mixed drinks or cocktails for consumption off the licensed premises may do so when sold in conjunction with meals prepared for pick-up or delivery. Any such alcoholic beverages must be packaged in a container with a secure lid or cap and in a manner designed to prevent consumption without removal of the lid or cap."Raso said while he appreciates the relaxed restrictions, he's still sitting on at least ,000 in kegs he can't sell."Allow us to repackage the beer from the taps," Raso said. "Allow us to drain the inventory that we already have tapped that's going to spoil and allow us to create some sort of revenue."In a statement to 10News, a spokesperson for the ABC wrote 1623

SAN DIEGO (KGTV) — The back-to-back announcements of promising clinical trial results from Pfizer and Moderna may usher in a new era for vaccine technology.Both companies have candidates that rely on a new kind of vaccine strategy: RNA. Preliminary data show both candidates are more than 90 percent effective.On the surface, the vaccine candidates look like any other you’ve taken. They work by training your body to build up defensive weapons against a virus, like antibodies and T-cells.But instead of training your body by introducing a killed virus or a fragment of a virus, the vaccines from Moderna and Pfizer introduce a set of instructions called messenger RNA enclosed in a little blob of fat.“The key concept of RNA is that they’re messages, and they’re meant as short-term messages,” said Dr. Shane Crotty of the La Jolla Institute for Immunology.Crotty said there are 5,000 to 10,000 messages within a cell at any given time.Once administered, the mRNA in the vaccine instructs some of your cells to make the coronavirus’ signature spike protein. The spike protein on the surface of the coronavirus allows it to infiltrate and hijack cells.Even though the spike protein is just one of about 25 genes the virus has, preliminary results from the clinical trials suggest it is enough material to train the immune system without making the recipient sick.Crotty likened the process of training the immune system to spotting a sedan. If the coronavirus is a car, the spike protein might be the door.“There's no way that car door could turn into a whole car, but it's enough of a piece of a car for your immune system to recognize that car if it saw it again,” he said.Scientists started by sequencing the virus’ DNA from a sick patient, then encoding that genetic sequence into an mRNA instruction molecule that can be read by the manufacturing part of cells.From there, Dr. Crotty said it’s a bit like the messenger app Snapchat.The mRNA gets injected into the body, sending temporary instructions to your cells that last for a while, then disappear. mRNA does not genetically modify cells, he stressed.“They’re around as messages for some period of time and then they go away, and the cells get back to their normal job of reading their own messages instead of reading the messages you’re injecting in the vaccine,” he said.The concept has been around since the 1990s, but there are currently no RNA vaccines on the market for any pathogen, so Dr. Crotty said it’s hard to estimate how long their protective effects will last.Some vaccines offer a lifetime of protection, like the measles vaccine. Others offer decades of protection. The flu vaccine only lasts about six months.Dr. Crotty said the length of protection depends on how fast the virus mutates and how long the immune cells survive in the body.But even if the COVID-19 vaccine turns out to need an annual update, he’s optimistic. The best feature of RNA vaccines is that they can be quickly reprogrammed.Both Moderna and Pfizer are still in their Phase 3 trials, but they expect to finish them by December. Together, they estimate they’ll have enough doses for about 35 million people by the end of this year, primarily for healthcare workers and high-risk individuals. 3250

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