When Political Declamation Meets Nuclear Reality: Dissecting Trump’s Claim of “Secret Testing”

Former U.S. President Donald Trump recently defended his order to the Pentagon to begin testing U.S. nuclear weapons, asserting that America is the only nuclear-armed nation not doing so.

“You have to see how they work,” Trump told O’Donnell when pressed on the need for testing. “Russia announced they’re going to do a test. North Korea tests constantly. Other countries test. We’re the only ones that don’t, and I don’t want to be the only country that doesn’t test.”

The comment has reignited public discussion on whether major powers are covertly detonating nuclear weapons and on the limits of independent verification. Yet an examination of official monitoring reports and open-source data reveals a far more constrained, rigorously substantiated picture than the president’s terse claim implies.

What the CTBTO Says: The Monitoring Record

The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), operator of the world’s most advanced nuclear-explosion monitoring network, directly rebutted fears of undetected tests. In an October 30 statement, Executive Secretary Robert Floyd asserted that the International Monitoring System (IMS) “can and will detect any nuclear weapon test explosion anywhere on the planet and has successfully detected all six declared nuclear tests conducted this century.”

The mention of “six declared” tests refers to North Korea’s six underground explosions between 2006 and 2017.

Floyd further warned that any explosive nuclear test would undermine global non-proliferation and threaten international peace and security. He noted that CTBTO monitoring data is shared with treaty signatories. The IMS relies on a worldwide network of seismic, hydroacoustic, infrasound, and radionuclide sensors, which collectively make it nearly impossible for a state to conduct an explosive test without generating detectable signals.

Who Has Actually Tested

In this century, North Korea is the only nation confirmed to have carried out nuclear explosive tests — six underground blasts from 2006 to 2017. All were captured and thoroughly examined by national intelligence agencies and global monitoring organizations.

The last declared nuclear explosive tests by states other than North Korea occurred in 1998, when India (Pokhran-II) and Pakistan (Chagai) each carried out sets of underground detonations. Since then, no declared explosive tests by those countries — or by the United States, Russia, China, France, or the United Kingdom — have been publicly reported.

Multiple expert evaluations and media fact-checks uncover no reliable evidence of covert explosive nuclear tests by Russia or China this century. Independent experts point out that while nations regularly trial delivery systems (missiles, rockets) and perform laboratory experiments, an actual nuclear explosion generates seismic and other signals that modern global networks make virtually impossible to hide.

Dissecting the President’s Assertion

The president’s remarks contain two distinct assertions: (1) that China and Russia are testing, and (2) that they are doing so secretly. Combined, this implies those states are conducting nuclear explosive tests undetected by the international community — an implication not supported by public evidence.

To begin with, the term testing can be interpreted in multiple ways. States test delivery systems (ballistic and cruise missiles), conduct subcritical experiments, perform computer simulations, or develop warhead designs through non-explosive research. These activities cannot be equated with an explosive nuclear test — a literal detonation — and typically produce no signatures detectable by the IMS.

The CTBTO’s reaffirmation that its network has effectively monitored all six declared nuclear tests made this century stands as a strong rebuttal to allegations of clandestine detonations. Although no monitoring system is theoretically flawless, the combination of seismic, infrasound, hydroacoustic, and radionuclide sensors ensures that the possibility of a state-sized nuclear explosion going completely unnoticed is extremely low.

What Fact-Checking and Reporting Found

Independent fact-checking agencies and major news outlets examined the president’s statements and concluded they were inconsistent with the official record. According to FactCheck.org, Reuters, and others, no credible evidence indicates that Russia or China has conducted explosive nuclear tests in recent decades. These organizations reference CTBTO monitoring as the authoritative global source for detection capability.

The authoritative record maintained by the CTBTO indicates that the only declared tests in the 21st century were the six by North Korea. The last explosive tests before that were the 1998 detonations by India and Pakistan. No verifiable, publicly available evidence supports claims that China or Russia has conducted covert explosive nuclear tests since then.

As policymakers interpret such assertions, distinguishing between different categories of testing is essential. Subcritical or laboratory-based research does not equate to an actual nuclear explosion. Given the grave consequences of misinterpretation in nuclear diplomacy, claims about treaty compliance and secret testing must be approached with the highest degree of scrutiny and restraint.

Sources

• CBS News – Full 60 Minutes interview transcript (Oct. 31, 2025)
• Reuters – Coverage of Paramount settlement & nuclear testing policy (2025)
• FactCheck.org – Clarifications on U.S. nuclear policy and CTBT (2025)
• CTBTO – Official statement by Robert Floyd (Oct. 30, 2025)
• Al Jazeera / Washington Post – Analysis of Trump’s remarks (Nov. 2025)