TIL only three people in the nation were qualified to hand-pack the parachutes for Apollo 15. Their expertise was so vital, they were not allowed to ride in the same car together for fear that a single auto accident could cripple the space program.

https://www.youtube.com/watch?v=hcfapTWLPg4

https://www.marketwatch.com/story/google-ordered-not-to-stifle-its-employees-ability-to-speak-about-work-2019-09-12

Hy pick's