Published research, MITRE EMB3D™ device properties mapped to potential threats and mitigations, and an independent hardware-evidence library for systems that sense, move, connect and act. Distinguish mechanisms, demonstrations, incidents and scoped findings.
MITRE EMB3D™ connects device properties to potential threats and mitigations for assessment planning. External demonstrations and operational incidents are not LrrK lab findings.
Research resources: Attributes for hardware profiles and planning candidates, and the Hardware Attack Library (HAL) (independent reviewed evidence records for drones, robotics and embedded hardware). LrrK Letters, the journal below, is a separate publication.
LrrK Letters
LrrK Letters — Volume 1, eighteen issues as web essays and original PDFs. Each issue keeps its historical dateline. Search covers titles, abstracts and the full essay text, including endnotes.
Drones, routers, robots, and the remaking of American technological sovereignty
Research cutoff: November 1, 2026
Between December 2025 and October 2026, American technology policy joined category-wide equipment restrictions, manufacturing commitments, import tariffs, and expanded spectrum access. These measures operate under separate authorities, yet their connections illuminate an emerging approach to connected machines: access…
Capability Proxies, Supply-Chain Strategy, and the Limits of Categorical Risk Regulation
Dateline: August 14, 2026
Yesterday's drone tariff proclamation turns thermal imaging into a consequential border classification. Covered aircraft with thermal imagers enter a 100 percent additional-duty tier, while smaller non-thermal aircraft generally face 25 percent, beginning in September. The distinction is understandable as a capability…
Infrared, Swarming, Categorical Controls, and the Industrial Gap a Definition Cannot Close
Dateline: July 31, 2026
The FCC's July proposal uses observable capabilities to identify foreign-produced drones and components for possible restrictions on continued importation and marketing. Thermal imaging, LiDAR, docking, agricultural dispensing, coordinated formations, weight, and defense-article integration become legal discriminators…
Authority, Seizure, Normalization, and the Permanent Afterlife of Temporary Air Defense
Dateline: July 17, 2026
The World Cup is still underway, but the institutions assembled around it already have a future beyond the tournament. Reported drone seizures now sit beside an effective federal implementation framework for nonfederal counter-UAS operations, a three-year procurement vehicle, and a new government guide to protecting ag…
False Positives, Coverage, Fire Control, Acoustic Sensing, and the Evidence Between Alert and Action
Dateline: July 3, 2026
A drone alert can trigger an investigation, interrupt an operation, or contribute to a weapon's aim. Those consequences make the meaning of detection a public question as well as a technical one. Recent Army fire-control development, acoustic research, multimodal proposals, and expanding investment expose several diffe…
Multi-City Operations, Early Seizures, Industrial Partnerships, and the Discipline of Real Event Data
Dateline: June 19, 2026
The early World Cup counter-drone record offers an unusually public encounter between security promises and daily institutional work. On June 18, Reuters reported officials' accounts of more than fifty seized drones and more than 150 incursions into prohibited airspace. Those totals establish reported enforcement activ…
Government Funding, World Cup Airspace, Corporate Consolidation, and the First Drone Dominance Deliveries
Dateline: June 5, 2026
Motorola Solutions' agreement to acquire D-Fend Solutions places counter-drone technology inside a wider public-safety business at a moment when World Cup restrictions and military purchasing are increasing demand. The attraction is understandable: an integrated supplier can connect specialized sensors and mitigation t…
Public Offerings, Backlog, Standardized Assessment, and the Financing of Trusted Drone Capacity
Dateline: May 22, 2026
The drone industry's operational ambitions increasingly depend on financial events occurring well before a customer receives a useful system. Red Cat's May offering, Ondas' quarterly results, and growing foreign demand show capital moving toward that opportunity. They also show why money and capacity require different…
Standardized Counter-UAS Criteria, Field Trials, and the Evidence Needed to Separate Products From Claims
Dateline: May 8, 2026
Counter-drone acquisition is beginning to acquire a common language of evaluation. JIATF-401's newly published unclassified criteria consider people, integration, risk, reliability, and cost alongside technical performance. That breadth deserves recognition. It also raises a harder question: how will shared criteria be…
Ukrainian Counter-Drone Technology, U.S. Marketplaces, and the Assurance Burden of Fast Transfer
Dateline: April 24, 2026
Romania's latest interceptor demonstration offers an unusually useful public detail: a missed target. The minister's description of a partially successful test sits alongside plans for rapid operation, reported U.S. adoption of Ukrainian command software, and the first purchases through a federal counter-UAS marketplac…
Ukrainian Export Ambition, Border Counter-UAS Deployment, and the Safety Case for Directed Energy
Dateline: April 10, 2026
Battlefield experience has become an asset that governments and manufacturers want to move across borders. The receiving institution, however, needs more than an aircraft that once worked elsewhere. It needs the people, support, integration, and permissions that make useful performance reproducible. This essay examines…
Model-Specific Exceptions, Material Change, and the Evidence Required to Keep an Approval True
Dateline: March 27, 2026
The first named conditional exemptions from the FCC's foreign-drone Covered List turn an argument about national origin into a problem of continuing product governance. Four entries received relief in March, each with a December expiration. The January application guidance already requires supply-chain disclosure, onsh…
Border Orders, Classified Incidents, Airspace Risk, and the Race to Unify Drone Defense
Dateline: March 13, 2026
Counter-drone capability can fail between a correct observation and an authorized response. The March record makes that institutional problem difficult to ignore: reported Texas incidents involving government aircraft prompted senatorial criticism, while an enterprise contract promises a common technical backbone and a…
Private Valuation, Public Orders, Litigation, and the New Political Economy of Drones
Dateline: February 27, 2026
Drone policy now speaks in two price languages: inexpensive operational effects and substantial expectations about the companies supplying them. February's record places a pending billion-dollar business combination beside European efforts to develop cheaper defenses, a large American delivery order, a legal challenge…
Competitive Procurement, Standing Demand, and the Risk of Teaching to the Test
Dateline: February 13, 2026
The first Drone Dominance competition is about to turn industrial ambition into a trial with operators, vendors and consequential orders. The announced program joins repeated evaluations to falling price targets and growing production volumes. Its appeal is the prospect of learning and buying faster than conventional a…
Mission Software, Counter-Drone Authority, and the Institutional Stack Behind Drone Dominance
Dateline: January 30, 2026
Ukraine's plans to make wartime information available for military artificial intelligence place a difficult resource at the center of industrial competition. Combat data can reveal failures that peacetime demonstrations miss, but its value depends on collection, interpretation, access and the conditions under which a…
Blue UAS, Domestic End Products, Conditional Approval, and the Administrative Production of Trust
Dateline: January 16, 2026
January's drone exemptions reveal how a broad restriction becomes an operating policy. The FCC has removed specified Blue UAS systems and qualifying domestic end products from its production-based Covered List designation for a temporary period, while individualized applications now connect admission to disclosure and…
Covered-List Authority, Grandfathered Fleets, and the Difference Between Exclusion and Capacity
Dateline: December 23, 2025
The FCC's December 22 decision changes the American drone market by restricting admission of new foreign-produced systems while preserving previously authorized models. Its immediate force lies in equipment authorization, rather than a general prohibition on possession or flight. This essay examines the authority behin…
The full reference: assertion taxonomy, evidence outcomes, confidence bands and capability truth labels proposed for evidence records. Claims retain their source, scope and observed-versus-inferred status; not every record is signed or published.
Fact
An observation with an intact custody chain. Cited by reference, never paraphrased into certainty.
Inference
A reading that follows from facts under stated assumptions. It can be withdrawn without deleting the facts.
Judgment
An analyst's disposition on a contested question, signed and attributable to a person.
Recommendation
An action proposed under named limits. Never presented as a finding.
Preserved unknown
Something the authorization did not permit us to examine. Recorded with the same weight as a finding.
The controlled terms used across every Story. They are deliberately few, and none of them is a score.
Assertion types
fact
Observed, custody intact.
inference
Derived under stated assumptions.
judgment
Analyst disposition on a contested reading.
recommendation
Proposed action, bounded by limits.
unknown
Not examined; scope excluded it.
Confidence bands
high
Multiple independent lines, no live contradiction.
moderate
One strong line, or several weak agreeing lines.
low
A single artifact, or unresolved contradiction.
not rated
No evidence has entered the archive yet.
Evidence outcomes
established
Condition reproduced under documented method.
not established
Attempted, not reproduced.
rejected
Actively disproved; the rejection is preserved.
inconclusive
Method exhausted without disposition.
not evaluated
Outside the authorized scope.
Currentness
current
Reading holds as of the stated date.
challenged
A contradicting record is open.
stale
Time has passed without re-examination.
superseded
A later signed version replaces it.
Open questions
Four problems the archive has not solved. Each records our current stance and what would change it.
Revisable interpretation
A reading must be able to change without erasing the reading it replaced, or the reason it changed.
Current stance
Versions are append-only; every supersession carries a reviewer and a written reason.
Would change our mind
Evidence that readers reliably mistake a superseded version for the current one.
Provenance at scale
Evidence must be cited by reference across thousands of subjects while protected material stays out of the narrative.
Current stance
Narratives cite hashes and custody records; they cannot inline restricted material.
Would change our mind
A citation scheme that stays verifiable when the underlying artifact is lawfully destroyed.
Honest uncertainty
A low-confidence sentence must never be absorbed into a confident summary.
Current stance
Confidence is carried per assertion, not per document, and summaries inherit the weakest band.
Would change our mind
Reader studies showing per-assertion bands are ignored in practice.
Currentness decay
A story must become stale on a defensible schedule, and a stale story must still be readable.
Current stance
Decay is a function of subject volatility, not a fixed interval.
Would change our mind
A volatility signal accurate enough to set intervals per product line.
Synthetic demo — no publications are represented here.
Citation & reuse
Each issue is a fixed artifact. Cite the volume, issue and the issue’s own date — its dateline, or research cutoff for Issue 18 — which records when the reading was made.
Quote freely with attribution. Do not present a figure from one release as the current position without checking the library for a later issue on the same subject.
