From Critiques Of Libertarianism
The state needn't punish men and women for their heresies; the private sector will do it for them. That's why during the McCarthy years so few people went to jail. Two hundred tops. Because it was in the workplace that Torquemada found his territory: some twenty to forty percent of employees, monitored, investigated, or otherwise subject to surveillance for their beliefs. The ruling elites in this country have always understood what Hamilton wrote in Federalist 79: "In the general course of human nature, a power over a man's subsistence amounts to a power over his will."
Corey Robin, "The Personnel is Political"