![The leaders of the exercise do a pre-brief for hundreds of participants at the Armed Forces Center in Austin, which hosted the Cobalt Magnet 22 command post.](/sites/default/files/styles/embed_image_large_480px_width_/public/2022-07/MicrosoftTeams-image%20%283%29.png?itok=zuZVqkZw)
NNSA’s large-scale ‘dirty bomb’ exercise in Austin succeeded by exposing potential gaps and failures
The Cobalt Magnet 22 exercise was organized by NNSA and held in Austin in 2022. The weeklong scenario had terrorists first warn about then detonate a "dirty bomb." Hundreds of responders came together to handle what happened next.