Stupid is as stupid does. Here is an owner/president of a company listening to attorneys who are agents of the government.
From the letter. "It is posable even more requirements will be imposed, based on our contracts with the U.S. Government."
Really? If a contract can be changed or modified by one party without the consent of the other party to the contract then it is not a contract.
Hornady is demanding its employees participate in an experiment and if they don't they will be terminated.
At the most OSHA can only demand masks. And OSHA has already said masks will not protect against Coved.