Global Risk

Divine Strake Experiment Canceled

02.22.07 | 1 min read | Text by Hans Kristensen

The Defense Threat Reduction Agency announced today that it has canceled the controversial Divine Strake experiment.

A 700 tons chemical explosion at the Nevada Test Site was intended to provide data for calibration of nuclear and conventional weapons against underground targets. Local fear that the explosion would kick up and disperse radioactive material from the ground – as well concern about Divine Strake’s role in calibrating the use of low-yield nuclear weapons against underground targets – prompted members of Congress to raise questions about Divine Strake.

The Federation of American Scientists was the first to obtain and publish confirmation from DTRA that Divine Strake was the same experiment described in the FY2006 and FY2007 DTRA budget requests as intended to “improve the warfighter’s confidence in selecting the smallest proper nuclear yield necessary to destroy underground facilities while minimizing collateral damage.” DTRA public affairs officials subsequently denied Divine Strake had any connection to nuclear missions, but were later contradicted by senior DTRA officials saying that it was nuclear related.

Background: Divine Strake

publications
See all publications
Global Risk
Blog
Google Introduces Deepfake Satellite Imagery: “It’s Fun!”

[Update: On July 31st, following significant backlash, Google announced that it was temporarily “rolling back” this feature “while we work on implementing stronger guardrails.”]  Google’s motto famously used to be “don’t be evil.” However, its latest feature has just made being evil a whole lot easier.  On July 30th, without much fanfare, Google Earth unveiled […]

07.31.26 | 5 min read
read more
Global Risk
Blog
Reflections from the 2026 FAS Nuclear Analysis Bootcamp

The bootcamp brought together more than two dozen next-generation open-source practitioners from across the world.

07.29.26 | 4 min read
read more
Global Risk
Issue Brief
Transforming American Biosecurity

The United States’ biosecurity governance system is structurally incapable of detecting and responding to certain classes of threats. U.S. biosecurity tools have not kept pace with technological advancements or a changing threat landscape.

06.29.26 | 8 min read
read more
Global Risk
Press release
Federation of American Scientists, Future of Life Institute Present Converging Risks Report, AI Impact Awards at Gala

FAS and FLI partnered to build a series of convenings and reports across the intersections of artificial intelligence (AI) with biosecurity, cybersecurity, nuclear command and control, military integration, and frontier AI governance. This project brought together leaders across these areas and created a space that was rigorous, transpartisan, and solutions-oriented to approach how we should think about how AI is rapidly changing global risks.

05.20.26 | 9 min read
read more