The risk of nuclear terrorism has reached unprecedented levels as terrorist organizations gain access to advanced technologies and recruit specialized expertise, according to Mauro Miedico, director of the UN Counter-Terrorism Centre. In a UN publication released on Sunday, Miedico warned that the convergence of technological capability and terrorist intent creates a security landscape fundamentally different from previous decades.
"The widespread availability of new technology has meant the risk of nuclear terrorism 'has never been so high as it is today,'" Miedico stated. He emphasized that terrorist groups now engage "much more strongly with new technologies" and have actively recruited experts including AI specialists. The use of drones in terrorist operations has already occurred, raising the prospect that such unmanned systems could be weaponized to deliver radiological dispersal devices—commonly known as dirty bombs.
The Existing Threat Architecture
While no nuclear terrorism incident has occurred to date, the underlying conditions for such an attack are increasingly present. Terror organizations, particularly Al-Qaeda, have explicitly expressed their intent to conduct nuclear attacks. According to the Combating Terrorism Center, Al-Qaeda's operational structure has evolved into "a dispersed, decentralized network of franchise groups," complicating traditional counterterrorism efforts focused on centralized command structures.
Historical precedent underscores the vulnerability of nuclear materials. The UN publication cited past instances in which uranium dioxide was stolen and possibly trafficked to countries with significant concentrations of terror group membership. These incidents demonstrate that the barrier between intent and capability—once thought insurmountable—has demonstrably eroded.
Prof. Chuck Freilich, former deputy National Security adviser in Israel and adjunct professor at both Tel Aviv University and Columbia University, assessed the deterrence challenge with stark clarity. Unlike conventional adversaries, Al-Qaeda's "nihilistic" ideological foundation means that traditional deterrence mechanisms would prove largely ineffective. Freilich stated that it would be "almost impossible to deter them" from using nuclear weapons if they obtained such capabilities.
International Safeguards and Governance Gaps
Miedico identified a critical institutional remedy: universal adoption of the International Convention for the Suppression of Acts of Nuclear Terrorism (ICSANT). He stressed that "Member States need to continue supporting efforts" to prevent nuclear terrorism through adherence to this framework. The implication is clear—current international participation in ICSANT remains incomplete, leaving governance gaps that adversaries might exploit.
Freilich's regional analysis reveals a nuanced but sobering picture. While he assessed a "very low probability" of a terrorist nuclear attack on Israel specifically, he cautioned that the consequences if such an attack occurred would carry "extraordinarily high risk" despite Israel's extensive protective measures. This asymmetry—low probability but catastrophic consequence—defines the modern security calculus.
Regarding other regional actors, Freilich assessed that Hamas and Hezbollah would face internal constraints against nuclear terrorism due to the inevitable harm to Palestinian and Lebanese populations. However, he did not dismiss the possibility entirely, characterizing it as a "severe threat" despite its remote likelihood. The analysis reflects the reality that organizational rationality—self-preservation—provides some protection, though not absolute assurance.
On the question of Iranian nuclear proliferation to regional proxies, Freilich noted it was "also unlikely, although not impossible," that Iran would transfer nuclear weapons or components to other actors. The primary restraint, he suggested, would be Iran's rational calculation that such a transfer would create a direct attribution pathway leading to catastrophic retaliation. Instead, Freilich assessed that Iran would more likely employ its nuclear capability as "an insurance policy or tool of intimidation" rather than as an instrument of actual use.
Why This Matters:
The convergence of technological proliferation, terrorist organizational adaptation, and documented historical theft of nuclear materials represents a fundamental shift in national security threat assessment. The fact that no nuclear terrorism incident has occurred reflects the effectiveness of existing safeguards—not their irrelevance. However, Miedico's warning that the threat "has never been so high" should prompt serious examination of whether current international governance structures, particularly incomplete adoption of ICSANT, adequately address the emerging risk environment. The security implications extend beyond counterterrorism into questions of border security, material tracking, and the institutional capacity of governments to maintain monopolies on weapons of mass destruction. Freilich's analysis suggests that while rational actors may be constrained by self-interest, the proliferation of decentralized terrorist networks reduces the reliability of such calculations as a protective mechanism.