That quote would have read “One has a moral responsibility to disobey unjust laws so long as those laws are of equal or greater unjustness than Jim Crow.”

References to prior controversies should not be interpreted as implying a moral equivalence with current controversies.

In essence yes at least in the context of this case, as it is essentially segregating those who wish to expose the illegal activity of the government, and those that wish to turn a blind eye. Remember, the NSA lied to congress, which is not only illegal but immoral in itself. Think about it, you get to sleep in your bed tonight, Snowden who knows where ?

When it's used to attack whistleblowers, yes.