Laws are irrelevant if they are not enforced. Laws are being very slowly or very selectively enforced these days, while some of the powers that be are flagrantly breaking laws.
> Will they get their salaries and some extra compensation for the tardiness?
Theoretically, yes. Just regular pay plus OT that they are owed. No bonus or extra compensation.
Also, most of these folks can fairly easily get low interest loans from banks or credit cards that will be due when they get back pay.
Part of this story is not being told, but I’m not sure what part.
Were these folks who were about to retire anyway?
Were these folks who plan on getting hired back when the government reopens?
I’m not sure, but I don’t think the complete story is being told here (not necessarily with malice or intent).
>Are there any laws that protect labour in the US?
Air traffic controllers are famously a group of people who were just mass fired for striking. These days the laws in the US actually protect the airlines from them by making it illegal for them to strike.