Stealing the Atom Bomb: How Denial and Deception Armed Israel

Stealing the Atom Bomb: How Denial and Deception Armed Israel by Roger J. Mattson exposes the covert mechanisms through which Israel acquired weapons-grade uranium from a U.S. nuclear facility during the Cold War. Through declassified documents, first-hand investigation, and detailed historical analysis, the book reconstructs a trail of evidence pointing to an unauthorized diversion of nuclear material from the Nuclear Materials and Equipment Corporation (NUMEC) in Apollo, Pennsylvania, to Israel’s nuclear weapons program.

The Apollo Facility and Its Zionist Origins

NUMEC operated as a privately owned nuclear fuel manufacturer beginning in 1957. Founded by Dr. Zalman Shapiro, a metallurgist and dedicated Zionist, NUMEC had strong financial and ideological connections to pro-Israel networks in the United States. Shapiro’s company rapidly acquired government contracts and processed highly enriched uranium (HEU) under the oversight of the Atomic Energy Commission (AEC). Between 1957 and 1978, more than 300 kilograms of HEU went missing. The shortfall exceeded the levels explainable by standard processing losses or contamination.

David Lowenthal, NUMEC’s financier and a supporter of Israel’s early statehood, helped secure capital and business momentum. The combination of Cold War nuclear expansion, lax regulatory control, and dual loyalties within the company’s leadership created ideal conditions for a covert transfer of nuclear material.

Tracing the Missing Uranium

In 1965, the AEC’s Oak Ridge Operations Office audited the government-leased HEU held at NUMEC. Investigators discovered a loss of 178 kilograms of U-235, later rising to 269 kilograms. This revelation triggered multiple investigations across federal agencies—AEC, FBI, CIA, the Joint Committee on Atomic Energy, and later, the Nuclear Regulatory Commission (NRC). Yet none resulted in criminal charges or diplomatic fallout.

Mattson identifies critical failures in each agency’s approach. AEC prioritized production and compliance metrics over counterintelligence. FBI agents treated the case as a law enforcement issue, demanding court-level evidence. CIA withheld foreign intelligence findings from domestic investigators, citing national security.

Israeli Agents on the Ground

The investigation revealed Israeli scientists and defense officials visiting NUMEC, including Mossad operatives with known roles in technology acquisition. One 1968 visit by four Israeli nuclear specialists coincided with unexplained material losses. Declassified FBI reports and CIA cables corroborated suspicions of espionage. Eyewitnesses later described armed intrusions at the facility, covert shipments, and threats to remain silent. One former employee recounted canisters of HEU being loaded onto a truck under supervision from non-American personnel.

In 1976, the CIA briefed NRC leaders for the first time, stating that it had concluded years earlier that the missing uranium likely ended up in Israel. The NRC’s internal records show staff resistance to this information being suppressed. James Conran, a senior safeguards official, attempted to expose the cover-up and eventually went public with his findings, catalyzing further investigation.

Cover-up Across Administrations

Presidents from Johnson through Carter received intelligence about the potential diversion. The National Security Council discussed containment strategies. Instead of pursuing prosecution or diplomatic reprisal, officials chose silence. The reasoning combined Cold War realpolitik, protection of the U.S.–Israel alliance, and fear of destabilizing the newly signed Treaty on the Non-Proliferation of Nuclear Weapons (NPT).

Mattson illustrates how secrecy orders, classification abuses, and bureaucratic inertia prevented resolution. Documents were redacted or withheld. Informants were ignored or discredited. Investigations concluded with vague statements and non-actionable summaries. When hard evidence surfaced, decision-makers emphasized political ramifications over rule-of-law enforcement.

The Role of the CIA and Its Israeli Channel

CIA officer James Angleton, head of counterintelligence and point of contact with Israeli intelligence, maintained a close relationship with Mossad. He viewed Israel as a vital Cold War ally. Through this liaison, the CIA received intelligence indicating Israel’s possession of U.S.-origin HEU and its use in weapons development at Dimona. CIA analysts found isotopic signatures linking uranium found near Dimona to material enriched in U.S. reactors.

Angleton’s trust in Mossad led to suppression of internal dissent. He filtered intelligence and limited inter-agency disclosures. Despite his success in acquiring foreign intelligence, Angleton’s ideological loyalty to Israel shaped the CIA’s reluctance to intervene in the NUMEC case.

NUMEC’s Legal Immunity

No one was charged. Dr. Shapiro, though subjected to scrutiny, maintained his security clearances and received federal support until his retirement. He denied wrongdoing and dismissed the allegations as anti-Semitic. Legal hurdles included a lack of direct surveillance, compromised chain of custody, and inconsistent regulatory standards. NUMEC’s records were incomplete or damaged. Technical accounting methods could not distinguish theft from loss.

Justice Department attorneys declined prosecution, citing insufficient evidence. Congressional hearings generated headlines but failed to achieve transparency. The Israeli government provided no assistance. By the time public interest reignited in the late 1970s, most investigative leads had gone cold.

Policy Breakdown and Nonproliferation Consequences

The NUMEC affair undermined the credibility of U.S. nonproliferation policy. While the U.S. pressured other nations to sign the NPT and submit to international inspections, its own institutions concealed a major breach. This hypocrisy weakened enforcement legitimacy and encouraged defiance among aspiring nuclear states.

India, Pakistan, and North Korea would later follow paths of covert or unauthorized nuclear development. The lack of U.S. accountability in the NUMEC case contributed to a global perception that strategic allies could violate norms with impunity. As Mattson demonstrates, this pattern continues to erode the authority of international agreements.

Secrecy as a Strategic Asset

Mattson argues that official secrecy—not just a protective measure, but an institutional strategy—enabled the success of the uranium diversion. FOIA delays, redactions, classification reviews, and bureaucratic reassignments served to obstruct investigation. Even decades later, documents remain withheld or censored. Agencies cite exemptions for protecting sources and methods, despite the passage of time.

This information asymmetry isolates researchers and weakens democratic oversight. Citizens lack the tools to evaluate their government’s historical actions. Congress receives filtered intelligence. The courts defer to executive claims of national security. As a result, no meaningful reckoning has occurred.

Learning from the NUMEC Affair

Mattson proposes institutional reforms. Strengthen safeguards on special nuclear material. Impose criminal liability for diversion and obstruction. Require full inter-agency disclosure and establish independent oversight of nuclear operations. Reassess the intelligence community’s relationship with foreign services. Expand declassification mandates, especially for Cold War-era programs. Codify protections for whistleblowers who expose security breaches.

Most urgently, acknowledge the historical record. Until the U.S. confronts its past complicity in proliferation, its leadership role in nuclear arms control remains compromised.

Strategic Implications for the Middle East

Israel’s nuclear opacity doctrine—neither confirming nor denying its arsenal—remains state policy. The U.S. supports this position, refraining from formal recognition while ensuring Israel’s qualitative military edge. This ambiguity influences regional dynamics, discouraging arms control while emboldening adversaries.

By tracing the origin of Israel’s nuclear capabilities to a U.S. facility, Mattson challenges the strategic logic of silence. The NUMEC case demonstrates that opacity breeds impunity. If policy assumes transparency deters conflict, then institutional silence erodes deterrence and invites escalation.

Conclusion: Holding Institutions to Account

Stealing the Atom Bomb compels readers to question the boundaries of state secrecy and the cost of alliance politics. The diversion of HEU from NUMEC marked a pivotal moment in global nuclear history. It redefined the operational risks of civil nuclear programs and revealed the fragility of regulatory systems under political pressure.

Mattson’s investigation serves as both a historical record and a warning. Intelligence failures, legal compromises, and policy evasions converge when institutions value discretion over justice. For nuclear security to advance, accountability must become doctrine.