Republicans struggle to keep rape a "private" matter

Thought everyone would find this article interesting:

http://www.huffingtonpost.com/2009/10/19/defense-department-oppose_n_326569.html

30 Republicans voted against an amendment that would allow rape victims who are employees of defense contractors to bring the case to open court rather than solving it privately within the company. This sparked the mock-website:

http://www.republicansforrape.org/legislators/

I'm seriously confused on this one, other than just the knee-jerk compulsion of Republicans to veto anything brought forth by Democrats (which Democrats do the same thing, don't get me wrong). But I just cannot see their justification for this. Only one guy who voted said that he wants to make sure it's "enforceable." Elaborate, please.