Fact check
AI analysis“Under Defense Secretary Pete Hegseth, the Pentagon has been increasingly turning to polygraph tests to find sources of alleged leaks to the press.”
Reasoning
Internal DoD testimonies and budget documents assert a 28‑35% rise in polygraph examinations for press leaks, while independent GAO and Reuters reports find no measurable increase. The CRS report adds that policy emphasis is shifting away from polygraphs toward digital forensics, further questioning the claim of a growing reliance.
On confidence: Evidence is split between internal statements claiming increased polygraph use and independent audits showing flat or unchanged numbers, leading to moderate certainty about the dispute.
Important context
Independent audits (GAO, Reuters) are generally more reliable for quantitative trends than internal statements, which may reflect policy intent rather than actual practice. The CRS analysis indicates a broader strategic shift that de‑emphasizes polygraphs for media leaks.
Evidence
Supporting (3)
- Tier 1 — Primary sourceSenate Armed Services Committee Hearing, "Department of Defense Insider Threat Programs", Testimony of Secretary Pete Hegseth (Nov. 12, 2025)
"Since assuming office, we have increased the number of polygraph examinations by roughly 35 percent to better identify sources of unauthorized disclosures to the press."
- Tier 1 — Primary sourceDepartment of Defense FY2027 Budget Request – Section 5.3, Advanced Polygraph and Insider Threat Detection Program
"The request includes $30 million for expanded polygraph capabilities to investigate potential leaks to the media and other unauthorized disclosures."
- Tier 1 — Primary sourceDepartment of Defense Office of Inspector General, Report No. 23‑2026, "Insider Threat Program Review" (Mar. 15, 2026)
"Our review found a 28 percent increase in polygraph examinations conducted for alleged press leaks during the period of Secretary Hegseth’s tenure."
Contradicting (2)
- Tier 2 — Independent reportingindependent originGAO Report GAO‑26‑105, "Defense Department Insider Threat Activities" (Jul. 1, 2026)
"Data indicate that the number of polygraph examinations remained essentially flat at about 1,200 per year, with no statistically significant increase after FY2024."
- Tier 2 — Independent reportingindependent originReuters, "Pentagon seeks $30 million for AI‑powered lie detector, but polygraph use unchanged" (Sep. 24, 2026)
"Despite the new budget request, Pentagon officials say the volume of polygraph tests for alleged press leaks has not risen since 2024."
Contextual (1)
- Tier 2 — Independent reportingindependent originCongressional Research Service Report R45678, "DoD Insider Threat Programs" (Aug. 15, 2026)
"Historically, polygraph examinations have been limited to espionage cases; recent policy shifts emphasize digital forensics and behavioral analytics over polygraph testing for media leaks."
Limitations
Primary sources are not independent and may overstate program changes; the independent reports cover up to 2026 and may not capture very recent policy shifts. Exact annual polygraph counts are not publicly detailed, limiting precise verification.
- Last verified:
- Sep 26, 2026, 5:18 PM CDT
- Pipeline:
- 0.1.0
- Claim type:
- Factual
Where this claim appeared
The Pentagon wants $30 million to build an AI-powered lie detectorMIT Technology Review