Index/Organizations/National Institute of Standards and Technology

National Institute of Standards and Technology

Measurement standards laboratory in the United States

Fact-Checks

149 results
Nov 16, 2025
Most Viewed

9-11 was an inside job

Major investigations and mainstream reporting reject the claim that “9/11 was an inside job,” concluding the attacks were carried out by al‑Qaeda operatives; government analyses such as NIST and debun...

Oct 14, 2025
Most Viewed

can jet fuel melt steal beams??? and was 9/11 a controlled demolition

The claim that "jet fuel melted steel beams" compresses complex engineering facts into a misleading phrase: ; weakened steel at high temperatures and fire-damaged connections are central to scientific...

Dec 20, 2025
Most Viewed

9/11 controlled demolition

The claim that the World Trade Center towers were brought down by a pre-planted “controlled demolition” is a central tenet of the 9/11 Truth movement but has been repeatedly examined and rejected by m...

Oct 13, 2025

What evidence supports the 9-11 conspiracy theory of US government involvement?

The claims that the U.S. government directly orchestrated or knowingly permitted the 9/11 attacks rest on a mix of circumstantial anomalies, contested technical interpretations, and long-standing dist...

Dec 8, 2025

What standards determine when AI-flagged content triggers a criminal investigation for CSAM?

Standards that trigger criminal investigations of AI-flagged content for child sexual abuse material (CSAM) rest on a mix of legal definitions (including statutes that now cover AI‑generated imagery),...

Nov 25, 2025

What caliber were the bullets taken from JFK's body? Does this confirm or deny the proposed information of caliber and the shooter's location?

Contemporary official investigations concluded that the fragments removed from President Kennedy were consistent with 6.5 mm (Mannlicher–Carcano) style ammunition and that forensic panels found eviden...

Nov 26, 2025

What calibers were found in JFK's limousine, stretcher, and autopsy specimens?

Official investigations and later forensic projects consistently link the bullets and fragments recovered from the limousine, the Parkland stretcher, and autopsy material to 6.5×52mm ammunition used i...

Nov 19, 2025

what happened to building 7 on 9/11

NIST’s final investigation concluded that fires — ignited by debris from the North Tower — heated floor beams and girders, led a critical internal column to fail, and triggered a fire‑induced progress...

Jan 24, 2026

did the world trade center towers collapse form the airplane crashes

The official, evidence-based conclusion is that the twin towers collapsed because hijacked airliners severely damaged structural components and ignited large multi-floor fires that weakened key elemen...

Jan 12, 2026

How have conspiracy theories about the 'Dancing Israelis' influenced public perception of the 9/11 investigations?

Conspiracy theories centered on the so-called "Dancing Israelis" — five Israeli nationals arrested on 9/11 after being seen filming the World Trade Center attacks — have persisted as a potent symbol u...

Nov 25, 2025

What motivates 9/11 conspiracy theories and how have experts debunked common claims?

Conspiracy theories about 9/11 arise from a mix of psychological reactions to trauma, distrust of official institutions, and selective reading of technical evidence; experts and major investigations (...

Nov 2, 2025

How have 9/11 conspiracy theories been addressed by experts and fact-checkers?

Two decades of expert analysis and mainstream fact-checking converge on a single, evidence-based conclusion: the World Trade Center towers collapsed from , not controlled demolition, a finding repeate...

Jan 30, 2026

What are the main arguments of the 9/11 controlled demolition conspiracy theory?

The variant of the 9/11 conspiracy theory argues that the Twin Towers and World Trade Center 7 were brought down deliberately with pre-planted explosives rather than by aircraft impact and fire, and i...

Jan 29, 2026

How reliable are facial-recognition match percentages reported by news outlets, and how have they been used in high-profile cases?

“match percentages” quoted in headlines are a shorthand for complex statistical tests—not a forensic certainty—and their real-world reliability depends on the metric used, the database size, image qua...

Nov 30, 2025

did building 7 WTC collapse normally or artificially?

NIST concluded that WTC 7 collapsed because fires, fed by office contents and ignited by debris from the Twin Towers, caused a critical column to fail and a subsequent progressive, fire-induced collap...

Jan 29, 2026

building 7 world trade center collaps

concluded after a multi‑year technical investigation that fires ignited by debris from the nearby collapsing towers led to a progressive internal failure and the full collapse of at about 5:20 p.m. on...

Jan 13, 2026

What changes did the REPORT Act of 2024 make to ESP mandatory reporting and CyberTipline data retention?

The REPORT Act (signed into law May 7, 2024) broadened what electronic service providers (ESPs) must report to the NCMEC CyberTipline and materially lengthened how long providers must preserve the con...

Nov 19, 2025

Why did the towers free-fall?

Videos and engineering reports show the World Trade Center towers on 9/11 did not simply “hover” but collapsed rapidly because fire- and impact-damaged structural elements failed floor by floor, allow...

Nov 14, 2025

What are the main differences between the 9/11 truth movement and other conspiracy theories?

The 9/11 Truth movement is a long‑running, loosely organized “truther” movement that denies or disputes the mainstream account of the September 11, 2001 attacks and advances theories such as controlle...

Oct 23, 2025

What are the existing digital ID options for people without smartphones?

There are multiple existing options to provide digital identity to people without smartphones, spanning , , and ; policy pilots and standards work show countries and standards bodies are explicitly pl...