The Weapons of Mass Destruction AI Security Gap

Commentary

Feb 12, 2026

Warning sign of a digital risk

Graphic by Worased Boontipchayakun/Getty Images

This commentary was originally published by TIME on February 12, 2026.

In 2023, former UN weapons inspector and scientist Rocco Casagrande arrived at the Eisenhower Executive Office Building, next to the West Wing of the White House, carrying a small, sealed container. Inside were a dozen test tubes containing ingredients that, if properly assembled, could cause a deadly pandemic.

According to Casagrande, an AI chatbot had not only provided him with the lethal recipe; it also offered ideas about how to pick the best weather conditions and targets for an attack. There to brief government officials on AI-enabled pandemic risks, Casagrande’s prop sent a powerful message to security officials about how rapidly AI had collapsed the barriers to engineering devastating bioweapons.

The barriers to engineering a pandemic have been lowered, and policymakers have taken note. America’s AI Action Plan (PDF) proposes defensive measures, and the UK’s 2025 Strategic Defence Review prioritizes chemical and biological defense. …

The remainder of this commentary is available at time.com.

More About This Commentary

Rebecca Hersman is an adjunct staff member at RAND, a senior research scholar at GovAI, and former director of the U.S. Defense Threat Reduction Agency (DTRA). Dr. Cassidy Nelson is the director of biosecurity policy at the Centre for Long-Term Resilience.

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