You need to have a reason to look at that information. It is not yours to do whatever you want with.
That's not what the article says...
> The plaintiffs include "unions and membership organizations representing current and former federal employees and federal student aid recipients and six military veterans who have received federal benefits or student loans,"
I wonder how much of this employee data is actually "personal", and not data relevant to their employment, which presumably isn't "private" from the perspective of the employer. So for example, I imagine their home address and birth date would be considered private; but their job title , primary place of work, start date, etc would not be "private data"...?
How are they doing that?