Within Readiness
What a Drone Can Learn Near a Nuclear Site
Small drones can reveal patrol routes, cameras, response times and access points even when they are first reported as ordinary unknowns.
On this page
- What a small drone can observe
- Why identification is harder than sighting
- How overflights test security plans
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Introduction
When unidentified objects are reported near nuclear facilities, the most important question is often not whether they are extraordinary but whether they reveal a security weakness. Small drones are particularly relevant because they can gather valuable information without crossing fences, cutting locks or physically entering protected areas. A brief overflight can reveal how a site is watched, how quickly guards respond, which routes patrols use and where surveillance coverage appears weakest. In that sense, a drone does not need to attack a nuclear site to create a security problem.
This matters within the broader discussion of UFOs and nuclear weapons because many initial reports begin as sightings of unknown aerial objects. Even when later identified as ordinary drones, the incident may still expose vulnerabilities in readiness, detection and response. Recent incidents at nuclear facilities and military installations show that identifying a drone operator, understanding intent and responding effectively can be far harder than simply spotting an object in the sky. [Forbes+2Nuclear Regulatory Commission]forbes.comDozens More Mystery Drone Incursions Over U.SNuclear…7 Sept 2020 — 24 nuclear sites suffered at least 57 drone incursions from 2015 to 2019 – and Palo Verde itself was overflown a…
What a Small Drone Can Observe
Modern commercial drones combine high-resolution cameras, stabilised video and autonomous navigation in systems that can fit into a backpack. From a security perspective, the concern is not only imagery but pattern collection.
A drone conducting repeated flights near a nuclear facility can potentially observe:
- Patrol timings and guard movement patterns.
- Locations of cameras, sensors and lighting systems.
- Vehicle access routes and gate procedures.
- Response times between detection and interception.
- Areas where terrain, buildings or infrastructure create blind spots.
- Routine maintenance activities and shift changes.
None of this information is necessarily classified in isolation. The value comes from combining observations over time. Security professionals often describe this as reconnaissance: learning how a protection system behaves under normal conditions. The same principle applies whether the target is a military installation, a power plant or a nuclear-related facility.
Researchers examining drone threats to critical infrastructure have repeatedly noted that inexpensive unmanned aircraft can perform surveillance missions that once required specialised intelligence resources. Studies prepared for nuclear-security audiences have highlighted the challenge of detecting small drones and the risk that they can collect information before defenders recognise what is happening. [OSTI.gov+2NTI Media]osti.govAnalyzing the Threat of Unmanned Aerial Vehicles (UAV)…by A Solodov · 2017 · Cited by 176 — In support of the guidance provided by the…
The Palo Verde Example
One of the most discussed cases involved the Palo Verde Nuclear Generating Station in Arizona. Security records released through public-records requests described multiple drones operating near the facility in September 2019. Reports indicated that several aircraft remained in the area for extended periods and appeared capable of coordinated movement. Investigators could observe the drones but were unable to immediately identify the operators. [Forbes]forbes.comDozens More Mystery Drone Incursions Over U.SNuclear…7 Sept 2020 — 24 nuclear sites suffered at least 57 drone incursions from 2015 to 2019 – and Palo Verde itself was overflown a…
The significance of the incident was not evidence of sabotage. Rather, it demonstrated a simpler concern: an unknown operator could study a protected site while security personnel struggled to determine who was flying the aircraft, where they were located or what information they were collecting. Internal discussions cited in subsequent reporting connected the event to concerns about future adversarial use of small drones against critical infrastructure. [The War Zone]twz.commassive uptick in official drone sightings by nuclear power plantsGoogle Earth). The drastic increase in…Read more…
Why Identification Is Harder Than Sighting
Many people assume that if a drone can be seen, it can easily be identified. In practice, those are different problems.
A guard, police officer or sensor operator may recognise that an object is present while still lacking answers to more important questions:
- Is it a hobbyist, contractor, activist or foreign intelligence collector?
- Where is the operator?
- Is the drone transmitting data elsewhere?
- Is it acting alone or as part of a larger operation?
- Is it conducting surveillance or simply passing through?
Small drones are difficult to track because they have limited radar signatures, can fly low and can disappear quickly behind terrain or structures. Locating the operator can be even harder than locating the aircraft itself. Nuclear-security specialists and regulators have increasingly focused on this distinction between detection and attribution. [OSTI.gov+2IAEA]osti.govAnalyzing the Threat of Unmanned Aerial Vehicles (UAV)…by A Solodov · 2017 · Cited by 176 — In support of the guidance provided by the…
Recent military cases illustrate the challenge. The drone incursions over Langley Air Force Base in late 2023 continued for days despite the sensitivity of the installation and the attention devoted to the investigation. Public reporting later indicated that authorities still faced difficulties determining who was responsible and how to stop the activity. The Wall Street Journal+2WHRO Public Media [wsj.com]wsj.comThe Wall Street Journal Mystery Drones Swarmed a U.SMilitary Base for 17 Days….12 Oct 2024 — U.S. officials don't know who is behind the drones that have flown unhindered over sensitive…
The lesson for nuclear security is straightforward: an unidentified drone can remain operational long enough to collect useful intelligence even when defenders know it is there.
How Overflights Test Security Plans
A drone overflight can function as a practical test of a security system.
The operator may learn far more from the defenders’ reaction than from the site itself. For example, a drone appearing near a restricted area can reveal:
- How quickly the activity is reported.
- Which agencies become involved.
- Whether response teams deploy immediately or after verification.
- Which detection systems are triggered.
- Whether the site can track the aircraft continuously.
- Whether counter-drone measures are available and authorised.
From a security-analysis perspective, this is valuable information. Any organisation protecting sensitive assets relies on procedures as much as physical barriers. If a drone repeatedly appears and defenders respond in predictable ways, those procedures become observable.
This concern has become prominent enough that government officials increasingly discuss drone incursions as intelligence-collection problems rather than merely aviation nuisances. Congressional hearings in the United States have highlighted concerns that hostile actors may use drones to surveil sensitive military equipment and installations. [House Oversight Committee]oversight.house.govHouse Oversight CommitteeTimmons Opens Hearing on Addressing Unauthorized Drone…29 Apr 2025 — Chairman Timmons brought to attention ho…
The Problem of Legal and Operational Constraints
Another vulnerability revealed by overflights is that defenders may not have immediate authority to act.
Even when security personnel believe a drone poses a threat, they may face legal restrictions on jamming signals, taking control of the aircraft or physically destroying it. Reports examining military installations have repeatedly noted uncertainty over authorities, responsibilities and counter-drone capabilities. In some cases, installations experienced recurring incursions despite recognising the threat. [Air & Space Forces Magazine]airandspaceforces.commany us bases still lack sufficient tech to track drone incursions dod officialsAir & Space Forces MagazineMany US Bases Still Lack Sufficient Tech to Track Drone…29 Apr 2025 — Pentagon officials say the military s…
For someone conducting reconnaissance, discovering these limits can be as useful as identifying a camera blind spot.
Why Nuclear Facilities Receive Special Attention
A drone flight over a shopping centre and a drone flight over a nuclear-related facility are not equivalent security events.
Nuclear sites contain assets whose protection depends heavily on layered security, controlled access and reliable response procedures. Because the consequences of a successful intrusion could be severe, even apparently minor reconnaissance activity attracts attention.
The International Atomic Energy Agency has expanded work on the nuclear-security implications of uncrewed systems and has convened specialised efforts focused on drone-related threats and countermeasures. Regulators have also strengthened reporting requirements and attention to drone sightings around nuclear facilities. These developments reflect a growing recognition that inexpensive unmanned aircraft can challenge traditional assumptions about perimeter security. [IAEA+2IAEA]iaea.orgNew CRP: Nuclear Security Implications of Uncrewed…26 Jul 2024 — The IAEA has launched a new research project dedicated to uncrewe…
Within the broader debate about UFOs and nuclear weapons, this provides a grounded explanation for why unidentified aerial activity near nuclear sites matters. A report may begin as a sighting of an unknown object, but the security significance often lies elsewhere. A small drone can reveal how a facility sees, reports and responds. Every successful overflight becomes a real-world test of the site’s defensive assumptions, regardless of whether the object is ultimately mysterious or entirely ordinary. [Forbes+2Nuclear Regulatory Commission]forbes.comDozens More Mystery Drone Incursions Over U.SNuclear…7 Sept 2020 — 24 nuclear sites suffered at least 57 drone incursions from 2015 to 2019 – and Palo Verde itself was overflown a…
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Endnotes
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Source: forbes.com
Title: Dozens More Mystery Drone Incursions Over U.S
Link: https://www.forbes.com/sites/davidhambling/2020/09/07/dozens-more-drone-incursions-over-us-nuclear-power-plants-revealed/Source snippet
Nuclear...7 Sept 2020 — 24 nuclear sites suffered at least 57 drone incursions from 2015 to 2019 – and Palo Verde itself was overflown a...
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Source: iaea.org
Link: https://www.iaea.org/newscenter/news/new-crp-nuclear-security-implications-of-uncrewed-aerial-ground-and-maritime-systems-j02018Source snippet
New CRP: Nuclear Security Implications of Uncrewed...26 Jul 2024 — The IAEA has launched a new research project dedicated to uncrewe...
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Source: osti.gov
Link: https://www.osti.gov/servlets/purl/1356834Source snippet
Analyzing the Threat of Unmanned Aerial Vehicles (UAV)...by A Solodov · 2017 · Cited by 176 — In support of the guidance provided by the...
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Source: media.nti.org
Link: https://media.nti.org/documents/THE_RISKS_AND_REWARDS_OF_EMERGING_TECHNOLOGY_IN_NUCLEAR_SECURITY.pdfSource snippet
Its nuclear security guidance document, Information...Read more...
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Source: whro.org
Title: the pentagon confirmed a swarm of drones violated langley [airspace]({{ ‘airspace/’ | relative_url }})
Link: https://www.whro.org/military-veterans/2024-10-15/the-pentagon-confirmed-a-swarm-of-drones-violated-langley-airspaceSource snippet
WHRO Public MediaThe Pentagon confirmed a swarm of drones violated...Oct 15, 2024 — The Pentagon confirmed Tuesday that drones were spot...
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Source: oversight.house.gov
Link: https://oversight.house.gov/release/timmons-opens-hearing-on-addressing-unauthorized-drone-activity-over-military-installations/Source snippet
House Oversight CommitteeTimmons Opens Hearing on Addressing Unauthorized Drone...29 Apr 2025 — Chairman Timmons brought to attention ho...
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Source: iaea.org
Link: https://www.iaea.org/events/evt2005113Source snippet
regarding nuclear security countermeasures for Uncrewed Aerial Vehicles.Read more...
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Source: www-pub.iaea.org
Title: PUB1875 web
Link: https://www-pub.iaea.org/MTCD/Publications/PDF/PUB1875_web.pdfSource snippet
Nuclear Security Series No. 40-TImplementing Guides provide guidance on the means by which States could implement the measures set out in...
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Source: www-pub.iaea.org
Title: Pub1271 web
Link: https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1271_web.pdfSource snippet
Nuclear Security Series No. 4The guidelines in this report take into account the existing robustness of structures, systems and component...
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Source: iaea.org
Link: https://www.iaea.org/projects/crp/j02018Source snippet
Nuclear Security Implications of Uncrewed Aerial, Ground...26 Jun 2024 — This project proposes a coordinated effort to amalgamate indiv...
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Source: nrc.gov
Title: fs drone pwr plant security
Link: https://www.nrc.gov/reading-rm/doc-collections/fact-sheets/fs-drone-pwr-plant-securitySource snippet
Nuclear Regulatory CommissionDrones and Nuclear Power Plant SecurityThe Nuclear Regulatory Commission updated its regulations in 2024 to...
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Source: twz.com
Title: massive uptick in official drone sightings by nuclear power plants
Link: https://www.twz.com/news-features/massive-uptick-in-official-drone-sightings-by-nuclear-power-plantsSource snippet
(Google Earth). The drastic increase in...Read more...
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Source: wsj.com
Title: The Wall Street Journal Mystery Drones Swarmed a U.S
Link: https://www.wsj.com/politics/national-security/drones-military-pentagon-defense-331871f4Source snippet
Military Base for 17 Days....12 Oct 2024 — U.S. officials don't know who is behind the drones that have flown unhindered over sensitive...
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Source: airandspaceforces.com
Title: many us bases still lack sufficient tech to track drone incursions dod officials
Link: https://www.airandspaceforces.com/many-us-bases-still-lack-sufficient-tech-to-track-drone-incursions-dod-officials/Source snippet
Air & Space Forces MagazineMany US Bases Still Lack Sufficient Tech to Track Drone...29 Apr 2025 — Pentagon officials say the military s...
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Source: airandspaceforces.com
Link: https://www.airandspaceforces.com/drone-incursions-b-52-base-strategic-installations/Source snippet
B-52 bomber wing, multiple times the week of March 9...
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Source: twz.com
Title: foreign nexus in military base drone incursions detailed by government insider
Link: https://www.twz.com/air/foreign-nexus-in-military-base-drone-incursions-detailed-by-government-insiderSource snippet
FAA Insider Opens Up About Drone Incursions Over...15 Aug 2025 — These all followed another incident that we were the first to report, t...
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Source: twz.com
Title: the night a drone swarm descended on palo verde nuclear power plant
Link: https://www.twz.com/34800/the-night-a-drone-swarm-descended-on-palo-verde-nuclear-power-plantSource snippet
The Night A Mysterious Drone Swarm Descended On Palo...30 Jul 2020 — Rodriguez reported that a number of drones were flying over and aro...
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Source: twz.com
Title: mysterious drones swarmed langley afb for weeks
Link: https://www.twz.com/air/mysterious-drones-swarmed-langley-afb-for-weeksSource snippet
Mar 15, 2024 — The unidentified drones were such an issue that assets were called in from around the government, including a NASA WB-57 h...
Additional References
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Source: businessinsider.com
Link: https://www.businessinsider.com/the-us-militarys-drone-defense-confusion-is-leaving-bases-vulnerable-2026-1Source snippet
military bases vulnerable to drone threats. The Department of Defense has failed to standardize counter-uncrewed aerial systems (UAS) dir...
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Source: nationalacademies.org
Link: https://www.nationalacademies.org/read/26630/chapter/11Source snippet
Chapter: 9 Ensuring Security and Promoting SafeguardsSecurity guidance exists for transporting nuclear materials, which have different th...
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Source: airsight.com
Link: https://www.airsight.com/en/news/drone-langley-air-force-baseSource snippet
Drone Swarm Infiltrates Langley Air Force BaseMysterious drone swarms breach US military bases, evading detection and raising national se...
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Source: reddit.com
Link: https://www.reddit.com/r/nuclear/comments/iqtf6y/drones_invade_airspace_above_palo_verde/Source snippet
Drones invade airspace above Palo Verde: r/nuclearHalf a dozen drones flew over the Unit 3 reactor for 80 minutes, long enough to map an...
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Source: eeas.europa.eu
Link: https://www.eeas.europa.eu/delegations/vienna-international-organisations/eu-statement-nuclear-safety-security-and-safeguards-ukraine-69th-regular-session-iaea-general_enSource snippet
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You might think of drones and nuclear power plants...24 nuclear sites suffered at least 57 drone incursions from 2015 to 2019."...
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ian UAV as a potential threat to nuclear facilities and suggests formulating...Read more...
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Title: the importance of anti drone systems in power plants
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The Importance of Anti-Drone Systems in Power Plants25 Apr 2023 — Learn how drones are disrupting nuclear power plants and how you can pr...
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s has emerged as a significant and complex threat to national security in recent...
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Link: https://www.onr.org.uk/our-work/how-we-regulate/international-safety-standards-iaeaSource snippet
ety. They are applicable, as relevant, throughout the entire...Read more...
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