I feel like these stories are apocryphal. I mean, I can't say for certain that no US DoD research program used subterfuge to trick the performers into working on The Most Racist Bomb. But I can say that in 20 years I've never seen a dearth of people ready, willing, able, and actively participating with full knowledge that they are creating The Fastest Bomb and The Sneakiest Bom and The Biggest Bomb Without Actually Going Nuclear.

IDK, maybe it's different outside the National Capitol Region. But here, you could probably shout "For The Empire" as a toast in the right bars and people wouldn't think you were joking.