STM Daily News
The A Line Light-Rail Extension from Azusa to Pomona: A Significant Milestone for Public Transportation

After a long-awaited journey, the extension of the A Line from Azusa to Pomona is officially complete and set to usher in a new era of public transportation in the San Gabriel Valley. This extensive 9.1-mile extension, which has taken over five years to construct, is positioned to enhance connectivity and mobility for residents and commuters alike.
The A Line extension is set to open to the public this summer!
A Monumental Achievement
As reported in the San Gabriel Valley Tribune on January 3, 2025, the $1.5 billion project was officially handed over to LA Metro last week. This extension includes four new stations in Glendora, San Dimas, La Verne, and Pomona. The construction involved overcoming significant challenges, including health protocols during the COVID-19 pandemic and a series of unusual weather patterns. Despite these obstacles, the project was completed within its scheduled timeline, showcasing the dedication of the construction teams from Kiewit-Parsons (KPJV) under the oversight of the Foothill Gold Line Construction Authority.
Improving Accessibility
This extension not only connects the existing light-rail system but also extends the A Line’s total length to a noteworthy 60.8 miles, solidifying its status as the longest light-rail line in the world. Current ridership estimates suggest that the extension could lead to over 11,000 additional weekday boardings, significantly contributing to the overall ridership numbers. As of November 2024, the A Line saw an average of 70,425 daily boardings—a notable increase from the previous year.
City officials and transit advocates view this development as an important asset for the region. “This extension will solidify Los Angeles’ public transit system, providing a viable alternative to those stuck in traffic,” said Eli Lipmen, executive director of Move LA.
A Step Towards Greater Connectivity
The Pomona extension is strategically significant, as it brings the A Line closer to San Bernardino County. While not quite reaching the county line, the Pomona station is sufficiently close for many residents from western San Bernardino cities like Montclair, Ontario, Upland, and Chino to benefit from this light-rail alternative. Many of these residents will find it convenient to park at the Pomona station and travel to key job and entertainment destinations in Los Angeles, Pasadena, and beyond.
Montclair City Councilmember Bill Ruh emphasized the importance of this link, noting how it enables residents to access transportation services more seamlessly than ever before. The extension is paving the way for expanded public transit options, which are essential for families in the Inland Empire.
A New Transportation Hub
The Pomona Station holds particular significance as it will also connect with the Metrolink San Bernardino line, creating a crucial interchange for travelers. This synergy between the two systems is expected to elevate passenger traffic on Metrolink, catering to an approximate increase of over 2,000 daily passengers.
“Connecting these lines gives people more options for accessibility and commuting,” said Habib Balian, CEO of the Foothill Gold Line Construction Authority. “It allows for a travel experience that wasn’t available before.”
Future Prospects
Notably, this extension is just the beginning. Plans are already underway for an additional 3.2-mile extension from Pomona to Claremont and Montclair, anticipated to be completed by 2030. This initiative will broaden the A Line’s reach further into San Bernardino County and provide a meaningful alternative for commuters navigating the busy 210, 10, and 60 freeways.
As residents begin to utilize the new service, the Pomona extension will likely drive demand for additional transit options in the Inland Empire. Bart Reed, executive director of The Transit Coalition, noted the anticipated ripple effect in transportation services in the region.
The upcoming opening of the A Line extension from Azusa to Pomona marks an important step forward for public transportation in Los Angeles and its surrounding areas. By enhancing connectivity, providing more options for commuters, and anticipating future growth, this extension promises to offer significant benefits for communities in the San Gabriel Valley and beyond. As we prepare for the service to commence later this summer, residents can look forward to a more integrated, efficient public transit system that supports their daily travel needs.
Related Links:
Foothill Gold Line from Glendora to Pomona Reaches Substantial Completion The $1.5 Billion Four-Station Light Rail Project is Completed On Time and On Budget Press Release(PDF)
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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FDA CDC News
Alert: Kroger Issues Food Recalls Affecting Multiple States

As of early February 2025, Kroger has announced a series of food recalls affecting customers across at least 15 states, as well as several subsidiary stores nationwide. The recalls, initiated due to safety concerns, include a variety of products that consumers should be aware of.
Twelve Hummus Tubs from King Harvest
Kroger subsidiary stores Fred Meyer and QFC, located in Alaska, Idaho, Oregon, and Washington, have recalled the following King Harvest hummus tubs, each weighing 10 oz:
- King Harvest Lemon Hummus
- King Harvest Classic Hummus
- King Harvest Roasted Garlic Hummus
- King Harvest Toasted Onion Hummus
- King Harvest Chipotle Hummus
- King Harvest Spinach Hummus
- King Harvest Black Olive Hummus
- King Harvest Sesame Hummus
- King Harvest Jalapeño Hummus
- King Harvest Balsamic Hummus
- King Harvest Sun Dried Tomato Hummus
- King Harvest Roasted Pepper Hummus
These products were recalled on February 5, 2025, due to a defect in their plastic tubs that may lead to the presence of plastic foreign objects within the containers. Kroger has advised customers, “Customers who purchased any of the item(s) below should not eat the product.” It remains unclear whether this recall is connected to a previous incident from September 2024 involving similar concerns.
DJs Boudain Products in Texas and Louisiana
Kroger stores in Texas and Louisiana have also issued a recall for the following DJs Boudain products:
- DJs Boudain Hot Jalapeño Boudain, 12 oz
- DJs Boudain Boudain Sausage, 24 oz
- DJs Boudain Boudain Sausage, 16 oz
These items were recalled on February 1, 2025, due to potential contamination with pieces of a pen. This recall is part of a broader action directed by the U.S. Department of Agriculture (USDA), which called for around 17,720 pounds of boudain sausage link products to be removed from stores across Louisiana, Mississippi, and Texas.
Gerber Products for Teething Children
In addition, two Gerber products intended for teething children were recalled from Kroger stores across multiple states, including Ohio, Virginia, Michigan, Indiana, Illinois, Missouri, Kentucky, Tennessee, Alabama, North Carolina, West Virginia, Texas, and Louisiana. The affected products are:
- Gerber Soothe N Chew Teething Sticks Banana, 3.2 oz
- Gerber Soothe N Chew Teething Sticks Strawberry Apple, 3.2 oz
These products were removed from shelves due to potential choking hazards. Kroger has assured customers that those who purchased these items can return them for a full refund. This recall is part of a nationwide action announced by the Food and Drug Administration (FDA). Gerber has expressed regret over the situation, stating, “The recall was initiated after receiving consumer complaints of choking incidents. To date, one emergency room visit has been reported to the firm…We sincerely apologize for any concern or inconvenience this action represents to parents, caregivers, and retail customers.”
Conclusion
Customers who have purchased any of the recalled products are urged to refrain from consuming them and to return the items for a refund. It is always advisable to stay informed about food recalls to ensure the safety of you and your family. For more updates on recalls and food safety, keep an eye on announcements from Kroger and the relevant health authorities. Stay safe!
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
Read the article in Newsweek: https://www.newsweek.com/kroger-food-recalls-issued-15-states-full-list-products-impacted-2027160
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3D-printed guns, like the one allegedly used to kill a health care CEO, are a growing threat in the US and around the world

Nir Kshetri, University of North Carolina – Greensboro
Police investigating the shooting of UnitedHealthcare CEO Brian Thompson on Dec. 4, 2024, have announced that the suspected assailant had used a 3D-printed gun. Several high-profile crimes in recent years have involved this kind of homemade, or partially homemade, weapon.
Often called “ghost guns” because they can be hard to trace, these firearms can be either partially or completely made with components that have been produced in metal or plastic on commercially available 3D printers. The U.S. Supreme Court is considering the legality of current federal restrictions on these firearms.
The first known criminal case involving a 3D-printed gun resulted in the arrest of a U.K. man in 2013. But since then, police worldwide have reported finding increasing numbers of these weapons.
My research focuses on the economic and social effects of advanced digital technologies, including 3D printing. I see that the use of 3D-printed guns in criminal and violent activities is likely to continue to increase. And it will likely prove ever harder for governments and police to regulate these firearms.
Surge in arrests and seizures
Arrests and seizures connected to 3D-printed guns are escalating quickly. Between 2017 and 2021, U.S. law enforcement agencies seized and reported nearly 38,000 suspected ghost guns, according to a 2024 report from the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives. In 2021 alone, 19,273 suspected ghost guns were traced, a significant increase from 8,504 in 2020. The number of seized 3D-printed guns in New York state alone surged dramatically, from 100 in 2019 to 637 in 2022.
Arrests linked to 3D-printed guns are also rising. The world recorded 108 arrests in the first half of 2023, compared to 66 arrests in all 2022.
North America leads in 3D-printed gun-related arrests, with 166 cases from 2013 to June 2023. Europe followed with 48 arrests, while Oceania ranked third with 24 arrests.
The U.S. is a particular hot spot, with 36% of total global arrests related to 3D-printed firearms in 2023. But Canada is close behind, with 34%. The U.K. had 10%, and Australia had 8%.
Growing global security threat
Police and media reports indicate that many efforts to acquire or manufacture 3D-printed firearms were connected to plans for violent actions.
These guns have been used by diverse groups including far-right extremists, ethno-separatists, jihadists, left-wing anarchists, organized crime groups in Europe and pro-democracy rebels in Myanmar.
From 2019 to mid-2022, there were at least nine documented cases in Europe and Australia of extremists, terrorists or paramilitary groups either producing or attempting to produce firearms using 3D-printing technology. An analysis of 165 cases of 3D-printed firearms from 2013 to mid-2024 reveals that 15% were linked to terrorism. Far-right groups appear to be the most frequent users among terrorism-related cases.
A widely varied legal landscape
Often, 3D-printed guns are homemade firearms without serial numbers. This lack of identification makes them attractive to criminals because it is harder for law enforcement to link specific guns to particular crimes or suspects. Different countries take very different approaches to regulating these weapons.
Japan enforces stringent laws governing the manufacture, possession and sales of firearms. Its legal system strictly prohibits unauthorized firearm production, including 3D-printed guns. In 2014, a 28-year-old Japanese man was sentenced to two years in prison for producing plastic 3D-printed firearms.
In 2023, Canada effectively banned ghost guns. It is illegal to possess or manufacture them without a license from the government.
In Australia, making a 3D-printed firearm is illegal, and in some states, possessing a digital blueprint to create one is also an offense. In the state of New South Wales, a person convicted of possessing blueprints can face up to 14 years in prison. In Tasmania state, the punishment can be even more severe – up to 21 years in prison.
Across the European Union, making or owning homemade firearms, including 3D-printed ones, is broadly prohibited. However, laws and penalties vary, with some nations criminalizing even the possession of digital files or blueprints related to 3D-printing guns.
In the U.K., where firearms are very restricted, 3D-printed guns have been considered illegal. But in November 2022, the government updated the laws to specifically ban possessing, buying or producing parts for 3D-printed guns. The proposal aims to explicitly ban 3D-printed guns, addressing their unique challenges directly, rather than relying on existing laws designed for traditional firearms. The U.K. National Crime Agency has called for a ban on possessing blueprints as well, and Parliament is currently considering two bills proposing such a ban. https://www.youtube.com/embed/c1g-C7c-57U?wmode=transparent&start=0 An NBC News investigation describes how easy it is to build a ghost gun.
Federal rules in the US
The U.S. Constitution poses some unique challenges to regulating ghost guns, especially for the federal government, but also for states.
For regular firearms – that is, those not produced by 3D printing – U.S. federal law requires that a key component, called the lower receiver, bear a unique serial number. Purchasing a lower receiver requires a federal background check and conducting the transaction through a merchant who holds a Federal Firearms License.
The situation is more complicated when it comes to 3D printing weapons. The First Amendment to the Constitution protects freedom of expression, which includes sharing digital files that could contain firearm designs. And the Second Amendment protects citizens’ right to bear arms.
In the U.S., selling 3D-printed firearms requires a federal license. But producing or owning homemade firearms for personal use is allowed. That includes 3D-printing the lower receiver component, and assembling the rest of the weapon with unregulated parts.
Current federal law, under review by the Supreme Court, also requires 3D-printed guns meet specific guidelines, even if they do not contain any currently regulated firearms components. Under the rule, makers of ghost gun kits must obtain a federal license, conduct background checks, record information about their customers and add serial numbers to their products.
The type of weapon also matters when determining the legality of a 3D-printed firearm. Automatic weapons, or machine guns, can continue to fire ammunition as long as the user holds the trigger down. These weapons have been heavily regulated by federal law for almost 90 years.
Criminals have used 3D printers to produce “Glock switches” or auto-sears, which convert semi-automatic firearms into fully automatic machine guns. That turns those items into machine guns under federal law, making them illegal. Owning this kind of 3D-printed conversion device can lead to a maximum of 10 years in federal prison and a $250,000 fine.
In the states
The states can also regulate firearms, and many are trying to get control of 3D-printed guns.
By November 2024, 15 U.S. states had established regulations on ghost guns, though exact requirements vary. The rules typically require a serial number, background checks for firearm component purchases and reporting to authorities that a person is producing 3D-printed guns.
For instance, in New Jersey, a 2019 law mandates that all ghost guns have a serial number and be registered. Under current New York law, possession or distribution of a 3D-printed gun is classified as a misdemeanor. However, a proposed law seeks to elevate the manufacturing of firearms using 3D-printing technology to a felony offense.
As technology advances and rules evolve, criminals who use 3D-printed firearms will continue to pose threats to public safety and security, and governments will continue playing catch-up to effectively regulate these weapons.
Nir Kshetri, Professor of Management, University of North Carolina – Greensboro
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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AI gives nonprogrammers a boost in writing computer code

Leo Porter, University of California, San Diego and Daniel Zingaro, University of Toronto
What do you think there are more of: professional computer programmers or computer users who do a little programming?
It’s the second group. There are millions of so-called end-user programmers. They’re not going into a career as a professional programmer or computer scientist. They’re going into business, teaching, law, or any number of professions – and they just need a little programming to be more efficient. The days of programmers being confined to software development companies are long gone.
If you’ve written formulas in Excel, filtered your email based on rules, modded a game, written a script in Photoshop, used R to analyze some data, or automated a repetitive work process, you’re an end-user programmer.
As educators who teach programming, we want to help students in fields other than computer science achieve their goals. But learning how to program well enough to write finished programs can be hard to accomplish in a single course because there is so much to learn about the programming language itself. Artificial intelligence can help.
Lost in the weeds
Learning the syntax of a programming language – for example, where to place colons and where indentation is required – takes a lot of time for many students. Spending time at the level of syntax is a waste for students who simply want to use coding to help solve problems rather than learn the skill of programming.
As a result, we feel our existing classes haven’t served these students well. Indeed, many students end up barely able to write small functions – short, discrete pieces of code – let alone write a full program that can help make their lives better.
Tools built on large language models such as GitHub Copilot may allow us to change these outcomes. These tools have already changed how professionals program, and we believe we can use them to help future end-user programmers write software that is meaningful to them.
These AIs almost always write syntactically correct code and can often write small functions based on prompts in plain English. Because students can use these tools to handle some of the lower-level details of programming, it frees them to focus on bigger-picture questions that are at the heart of writing software programs. Numerous universities now offer programming courses that use Copilot.
At the University of California, San Diego, we’ve created an introductory programming course primarily for those who are not computer science students that incorporates Copilot. In this course, students learn how to program with Copilot as their AI assistant, following the curriculum from our book. In our course, students learn high-level skills such as decomposing large tasks into smaller tasks, testing code to ensure its correctness, and reading and fixing buggy code.
Freed to solve problems
In this course, we’ve been giving students large, open-ended projects and couldn’t be happier with what they have created.
For example, in a project where students had to find and analyze online datasets, we had a neuroscience major create a data visualization tool that illustrated how age and other factors affected stroke risk. Or, for example, in another project, students were able to integrate their personal art into a collage, after applying filters that they had created using the programming language Python. These projects were well beyond the scope of what we could ask students to do before the advent of large language model AIs.
Given the rhetoric about how AI is ruining education by writing papers for students and doing their homework, you might be surprised to hear educators like us talking about its benefits. AI, like any other tool people have created, can be helpful in some circumstances and unhelpful in others.
In our introductory programming course with a majority of students who are not computer science majors, we see firsthand how AI can empower students in specific ways – and promises to expand the ranks of end-user programmers.
Leo Porter, Teaching Professor of Computer Science and Engineering, University of California, San Diego and Daniel Zingaro, Associate Professor of Mathematical and Computational Sciences, University of Toronto
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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