of this area is rather weak), but don't treaties entered into become a
part of the "supreme law of the land" (Article VI, Section 2)?
Yes, they do.
> Is the
Universal Declaration of Human Rights an agreement with the same
binding power as a treaty?
Don't know. Doesn't sound like it, though. A Declarations sounds like a nice statement of good intention.
In any case I would not hold up high hopes for enforcing a right to employment through the courtts even if the US had by some oversight in fact signed a treaty that purported to offer such rights.
--jks