News
Listening for the right radio signals could be an effective way to track small drones
Unidentified drone sightings near sensitive U.S. locations raise public concern. Challenges exist in tracking these drones, necessitating better detection methods and potential regulatory changes for airspace management.
Iain Boyd, University of Colorado Boulder
The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public concern.
Some of this recent increase in activity may be related to a September 2023 change in U.S. Federal Aviation Administration regulations that now allow drone operators to fly at night. But most of the sightings are likely airplanes or helicopters rather than drones.
The inability of the U.S. government to definitively identify the aircraft in the recent incidents, however, has some people wondering, why can’t they?
I am an engineer who studies defense systems. I see radio frequency sensors as a promising approach to detecting, tracking and identifying drones, not least because drone detectors based on the technology are already available. But I also see challenges to using the detectors to comprehensively spot drones flying over American communities.
How drones are controlled
Operators communicate with drones from a distance using radio frequency signals. Radio frequency signals are widely used in everyday life such as in garage door openers, car key fobs and, of course, radios. Because the radio spectrum is used for so many different purposes, it is carefully regulated by the Federal Communications Commission.
Drone communications are only allowed in narrow bands around specific frequencies such as at 5 gigahertz. Each make and model of a drone uses unique communication protocols coded within the radio frequency signals to interpret instructions from an operator and to send data back to them. In this way, a drone pilot can instruct the drone to execute a flight maneuver, and the drone can inform the pilot where it is and how fast it is flying.
Identifying drones by radio signals
Radio frequency sensors can listen in to the well-known drone frequencies to detect communication protocols that are specific to each particular drone model. In a sense, these radio frequency signals represent a unique fingerprint of each type of drone.
In the best-case scenario, authorities can use the radio frequency signals to determine the drone’s location, range, speed and flight direction. These radio frequency devices are called passive sensors because they simply listen out for and receive signals without taking any active steps. The typical range limit for detecting signals is about 3 miles (4.8 kilometers) from the source.
These sensors do not represent advanced technology, and they are readily available. So, why haven’t authorities made wider use of them? https://www.youtube.com/embed/9yFzdpEqQCs?wmode=transparent&start=0 Drones were all the buzz in the Northeast at the end of 2024.
Challenges to using radio frequency sensors
While the monitoring of radio frequency signals is a promising approach to detecting and identifying drones, there are several challenges to doing so.
First, it’s only possible for a sensor to obtain detailed information on drones that the sensor knows the communication protocols for. Getting sensors that can detect a wide range of drones will require coordination between all drone manufacturers and some central registration entity.
In the absence of information that makes it possible to decode the radio frequency signals, all that can be inferred about a drone is a rough idea of its location and direction. This situation can be improved by deploying multiple sensors and coordinating their information.
Second, the detection approach works best in “quiet” radio frequency environments where there are no buildings, machinery or people. It’s not easy to confidently attribute the unique source of a radio frequency signal in urban settings and other cluttered environments. Radio frequency signals bounce off all solid surfaces, making it difficult to be sure where the original signal came from. Again, the use of multiple sensors around a particular location, and careful placement of those sensors, can help to alleviate this issue.
Third, a major part of the concern over the inability to detect and identify drones is that they may be operated by criminals or terrorists. If drone operators with malicious intent know that an area targeted for a drone operation is being monitored by radio frequency sensors, they may develop effective countermeasures. For example, they may use signal frequencies that lie outside the FCC-regulated parameters, and communication protocols that have not been registered. An even more effective countermeasure is to preprogram the flight path of a drone to completely avoid the use of any radio frequency communications between the operator and the drone.
Finally, widespread deployment of radio frequency sensors for tracking drones would be logistically complicated and financially expensive. There are likely thousands of locations in the U.S. alone that might require protection from hostile drone attacks. The cost of deploying a fully effective drone detection system would be significant.
There are other means of detecting drones, including radar systems and networks of acoustic sensors, which listen for the unique sounds drones generate. But radar systems are relatively expensive, and acoustic drone detection is a new technology.
The way forward
It was almost guaranteed that at some point the problem of unidentified drones would arise. People are operating drones more and more in regions of the airspace that have previously been very sparsely populated.
Perhaps the recent concerns over drone sightings are a wake-up call. The airspace is only going to become much more congested in the coming years as more consumers buy drones, drones are used for more commercial purposes, and air-taxis come into use. There’s only so much that drone detection technologies can do, and it might become necessary for the FAA to tighten regulation of the nation’s airspace by, for example, requiring drone operators to submit detailed flight plans.
In the meantime, don’t be too quick to assume those blinking lights you see in the night sky are drones.
Iain Boyd, Director of the Center for National Security Initiatives and Professor of Aerospace Engineering Sciences, University of Colorado Boulder
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Fifty volunteers joined Diana Gregory Outreach Services and community partners on November 5, with support from AARP, State Farm, and BHHS Legacy Foundation.
PHOENIX — Fresh produce and community support came together Thursday morning, November 5, 2026, as Veggies for Veterans distributed 700 grocery bags during an event hosted by the Phoenix VA Health Care System.
The Diana Gregory Outreach Services (DGOS) program brought together 50 volunteers to help provide veterans with nutritious food. Each bag contained a variety of 13 fruits and vegetables, according to the event results supplied by organizers.
The effort also received a contribution from Peddler’s Son, which donated a five-pound bag of Idaho potatoes and a bag of grapes for each veteran.
AARP, State Farm, and BHHS Legacy Foundation Lead Financial Support
AARP, State Farm, and BHHS Legacy Foundation were the event’s three largest financial sponsors, helping make the distribution possible.
Volunteers represented all three organizations, along with the Archer Ragsdale Arizona Chapter Tuskegee Airmen, Inc. Arizona Community Foundation and Santander also contributed volunteer support.
AARP Arizona State Director Dana Marie Kennedy attended the event. AARP’s participation included volunteers and an outreach table featuring candy and AARP-branded giveaway items for attendees and veterans.
Together, the financial contributions, donated food, and volunteer service supported an event centered on veterans and their access to fresh produce.
A Special Guest With a Remarkable Service History
Among those attending was 106-year-old Major Fannie Griffin McClendon, whose military career connects the gathering to an extraordinary chapter in American history.
McClendon served during World War II with the 6888th Central Postal Directory Battalion, widely known as the “Six Triple Eight.” The historic unit of Black women soldiers helped process a massive backlog of military mail in Europe.
Her service continued beyond World War II. The Library of Congress documents her later career in the Air Force, including service as a squadron commander.
Her attendance offered an opportunity to recognize a veteran whose career helped break barriers for Black women in the military.
More Than a Bag of Groceries
Veggies for Veterans’ purpose extends beyond the food distributed at an individual event. The program focuses on helping veterans access fresh produce while creating opportunities for connection and community support.
Grocery costs, transportation, and mobility can make obtaining nutritious food difficult. Bringing produce directly to veterans through VA and community settings is one way the program works to address those barriers.
The November 5 distribution also reflected the collective work behind that support: an organization coordinating the effort, a VA host, financial sponsors, a food donor, and volunteers contributing their time.
With 700 bags distributed and 50 volunteers participating, the event demonstrated how community partnerships can translate into practical support for veterans.
Readers interested in learning more about the program, volunteering, or exploring ways to support its work can visit Diana Gregory Outreach Services.
Reporting note: Event results, sponsor recognition, donations, volunteer participation, and attendee information were supplied for this recap. Historical background on Major McClendon is supported by the Library of Congress.
Sources and Further Information
- Diana Gregory Outreach Services — Veggies for Veterans
- Phoenix VA — November 5 Veggies for Veterans event listing
- Library of Congress — Fannie Griffin McClendon
Automotive
2027 Toyota Tundra Adds Trailhunter Package and Updated Technology
The 2027 Toyota Tundra adds a Trailhunter package, refreshed styling and a standard 14-inch touchscreen. Starting MSRP is $42,890.
Last Updated on November 7, 2026 by Daily News Staff
PLANO, Texas — Toyota is updating the 2027 Tundra with refreshed exterior styling, a new Trailhunter package and additional technology for its full-size pickup lineup.
2027 Toyota Tundra: Trailhunter Package and Tech Updates
Based on the SR5 grade, the Trailhunter package adds Old Man Emu suspension, Michelin all-terrain tires, front recovery hooks and extra underbody protection. A locking rear differential, Multi-Terrain Select and Crawl Control help drivers navigate challenging terrain, while bronze-colored wheels distinguish the package.
The TRD Pro receives newly designed, adjustable FOX Q3S shocks, standard red tow hooks and a new Honeycomb paint option.
Inside, a 14-inch multimedia touchscreen becomes standard. Toyota also adds a built-in drive recorder and makes Toyota Safety Sense 4.0 standard across the lineup. Gas and i-FORCE MAX hybrid powertrains remain available.
Toyota lists the 2027 Tundra with a starting MSRP of $42,890. Buyers should check destination charges, options and dealer pricing when comparing total costs.
Sources:
health and wellness
Flu Season Arrives Early: Walgreens Launches 2026-2027 Flu Index as Activity Rises Across the U.S.
The 2026-2027 flu season is tracking four weeks ahead of recent years. Explore Walgreens’ new Flu Index, rising activity, and ways to stay protected.
Last Updated on November 6, 2026 by Daily News Staff
2026-2027 Flu Season: New tracking data suggests influenza activity is running approximately four weeks ahead of recent seasons, with increases reported across western states and Florida.
2026-2027 Flu Season Starts Early as Walgreens Launches New Flu Index
STM Daily News | Health & Wellness
October 30, 2026
Flu season may be getting an early start this year, and a new online tracking tool from Walgreens is giving Americans a closer look at respiratory illness activity in their communities.
On October 21, Walgreens announced the launch of its 2026-2027 Flu Index, an interactive tool that monitors influenza, COVID-19, and other acute respiratory illnesses across the United States.
According to the company’s initial findings, national flu activity is tracking approximately four weeks ahead of recent flu seasons, with increasing activity reported across several western states and Florida.
The early trends serve as a reminder that influenza doesn’t necessarily wait until winter to begin spreading.
Flu Activity Is Increasing Earlier Than Expected
Walgreens reports that its early-season data indicates influenza activity is already increasing in multiple parts of the country.
The company’s findings include:
- Earlier flu activity: National flu activity is tracking approximately four weeks ahead of recent seasons.
- Regional increases: Several western states and Florida are experiencing rising activity.
- More antiviral prescriptions: Walgreens reports dispensing more flu antiviral medications than during the same period in 2025.
- Growing demand for cold and flu products: Sales of cold and flu medications, at-home respiratory illness tests, cough drops, and tea have increased by double-digit percentages compared with last year.
Although these indicators suggest respiratory illness activity is increasing, they do not necessarily mean the current flu season will be more severe than previous seasons.
Increased purchases of cold medications and testing products can reflect changes in consumer behavior as well as illness trends.
The findings come from Walgreens’ pharmacy and retail data and should be considered alongside public health surveillance from the Centers for Disease Control and Prevention (CDC).
What Is the Walgreens Flu Index?
The Walgreens Flu Index is an interactive online platform designed to help consumers understand where respiratory illnesses are circulating and how activity is changing over time.
The tool combines several types of information, including:
- Flu and COVID-19 testing data from Walgreens locations
- Prescription antiviral medication trends
- Over-the-counter cold and flu product purchases
- Geographic patterns in respiratory illness activity
Using these indicators, Walgreens calculates an activity score ranging from 0 to 10.
A score of zero represents the lowest level of activity, while a score of ten represents the highest.
The index provides weekly information for states and territories, along with more than 1,500 counties where sufficient Walgreens data is available.
The map is updated every Monday, allowing users to compare current activity with previous weeks and the prior flu season.
Importantly, Walgreens emphasizes that the index measures relative illness activity, not disease severity. A higher score does not necessarily indicate more hospitalizations, more serious infections, or a greater risk of complications.
The index also does not represent a complete count of influenza cases nationwide.
Explore the interactive map:
https://www.walgreens.com/seasonal/respiratory-illness-index
Why Local Flu Activity Matters
Influenza does not spread evenly across the country.
Some communities may experience increasing cases weeks before others, making local information useful for families, schools, healthcare providers, and individuals who may be at higher risk of complications.
“Flu activity can vary significantly from one community to another, and knowing what’s happening locally can make a real difference,” said Rick Gates, Walgreens’ chief pharmacy and enterprise external affairs officer.
Gates added that the index is intended to help people make informed decisions about prevention, including vaccination before influenza becomes more widespread in their communities.
For residents of states such as Arizona, California, Nevada, and other western states, the reported regional increases make monitoring local respiratory illness trends particularly relevant.
However, the company’s announcement does not establish that every western county is experiencing elevated flu activity. Readers should consult the latest local data for a more accurate picture.
Why Getting a Flu Shot Still Matters
Annual influenza vaccination remains an important tool for reducing the risk of flu illness and serious complications.
Because influenza viruses change over time, flu vaccines are reviewed and updated each season to target strains expected to circulate.
The CDC recommends annual influenza vaccination for most people ages six months and older, with rare exceptions.
Vaccination is especially important for people who face a greater risk of serious complications, including:
- Adults ages 65 and older
- Young children, particularly those younger than five
- Pregnant individuals
- People with chronic conditions such as asthma, diabetes, or heart disease
- People with weakened immune systems
For adults 65 and older, the CDC preferentially recommends certain enhanced influenza vaccines, including higher-dose, recombinant, or adjuvanted options, when available.
Walgreens says its pharmacies offer standard-dose and higher-dose vaccines, along with a new mRNA influenza vaccine at select locations.
Vaccine selection should follow current CDC recommendations, individual eligibility, and guidance from a qualified healthcare professional.
It generally takes about two weeks after vaccination for the body to develop protective antibodies.
Even if influenza is already circulating locally, vaccination can still provide benefits throughout the season.
Practical Ways to Reduce Your Risk of Getting Sick
Vaccination is an important preventive measure, but it is not the only step people can take to reduce the spread of respiratory illnesses.
Public health guidance also encourages several everyday precautions.
Wash your hands regularly. Use soap and water, particularly after touching shared surfaces or being in public places. Alcohol-based hand sanitizer can help when soap and water are unavailable.
Cover coughs and sneezes. Use a tissue or your elbow to reduce the spread of respiratory droplets.
Improve indoor air quality. Opening windows when practical, improving ventilation, and using appropriate air filtration can help reduce exposure to airborne respiratory viruses.
Avoid close contact when sick. Staying home when experiencing respiratory illness symptoms can help protect coworkers, classmates, friends, and family members.
Consider wearing a well-fitting mask. Masks can provide an additional layer of protection, particularly in crowded indoor spaces or around people at higher risk.
Pay attention to symptoms. Fever, coughing, sore throat, fatigue, muscle aches, and congestion can occur with influenza and other respiratory infections.
Because flu and COVID-19 can produce similar symptoms, testing may help determine the cause of an illness.
People at higher risk of complications should contact a healthcare professional promptly if flu symptoms develop. Prescription antiviral medications work best when started early, ideally within the first two days of symptoms, although treatment can still benefit some patients later.
Walgreens Expands Vaccination Access for the 2026–2027 Season
Alongside the launch of its Flu Index, Walgreens announced several efforts to make seasonal vaccinations more convenient.
The company says it is increasing pharmacy staffing, expanding appointment availability, and allowing customers to schedule vaccinations further in advance.
Customers can arrange appointments through several methods:
- Online: https://www.walgreens.com/ScheduleVaccine
- Mobile: Walgreens app
- Text: Send “Flu” to 66879
- Telephone: 1-800-WALGREENS
- Walk-in: Participating Walgreens pharmacies, subject to availability
Walgreens also announced promotional Walgreens Cash rewards for eligible myWalgreens members receiving vaccinations.
Under the limited-time promotion, qualifying members may earn $15 in Walgreens Cash rewards on eligible purchases, along with an additional 10% back on qualifying purchases for a limited period.
Restrictions, exclusions, geographic limitations, and promotional deadlines apply. Customers should review the official terms before participating.
What About COVID-19 and Other Respiratory Illnesses?
Although influenza is the primary focus of the seasonal announcement, the Walgreens Flu Index also tracks COVID-19 and broader acute respiratory illness trends.
This distinction matters because several respiratory viruses can circulate simultaneously during the fall and winter months.
Influenza, COVID-19, respiratory syncytial virus (RSV), and common cold viruses can produce overlapping symptoms, but their potential complications and recommended treatments differ.
Vaccination eligibility and recommendations also vary by disease, age, and individual health circumstances.
Readers should consult current CDC guidance and their healthcare providers when considering flu, COVID-19, or RSV vaccination.
The Bottom Line: Flu Season May Be Early, but Prevention Still Matters
The launch of the 2026–2027 Walgreens Flu Index offers another resource for Americans who want to monitor respiratory illness activity in their communities.
While Walgreens’ early findings suggest influenza activity is increasing sooner than in recent years, it is still too early to determine how severe the overall season will become.
The most important message for consumers is to prepare before respiratory illnesses become widespread.
Staying current with recommended vaccinations, practicing good hygiene, monitoring local illness trends, and seeking medical attention when appropriate can help reduce the risk of serious illness.
With flu activity already rising in some regions, now is a good time for families to review their seasonal health plans.
Related Links for Further Information
Walgreens Resources
- Walgreens Respiratory Illness Index — Interactive map showing respiratory illness activity across the United States.
- Walgreens Vaccination Scheduling — Schedule a flu vaccination or explore available vaccines.
Public Health Resources
- CDC Seasonal Influenza Information — Information about influenza symptoms, prevention, vaccination, and treatment.
- CDC FluView Surveillance — National influenza surveillance and weekly activity reports.
- CDC: Flu and People 65 Years and Older — Guidance for older adults and influenza vaccination.
- CDC Respiratory Illnesses — Prevention information for flu, COVID-19, and RSV.
Source: Walgreen Co., press release, October 21, 2026, Walgreens Launches 2026–2027 Flu Index as Activity Tracks Four Weeks Ahead of Recent Seasons.
Editor’s Note: This article summarizes information from Walgreens’ October 21, 2026, announcement. The reported early-season trends reflect the company’s findings at that time and are not a substitute for current CDC surveillance or medical advice. Readers should consult healthcare professionals about individual vaccination and treatment decisions.
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