With enough leverage, large groups of people can be kept quiet. Although 60k is quite the stretch.

I was personally part of something significant that required over 500 people to keep their lips sealed. I’ve looked for leakers online a number of times but I’ve not run across any. I’ve considered blabbing too, because it’s pretty interesting and is something I think people should know about, but I don’t think I ever will because it will threaten my livelihood (maybe even my life).

When I retire, I guess.