According to a newly released document from the judicary.house.gov website, Nintendo of America is no longer listed as a supporter for the Stop Online Piracy Act or SOPA. Although the company is no longer listed in the document, the Entertainment Software Association is still among the supporters, which Nintendo of America is a member.
No official word has been released by Nintendo of America regarding the situation, however we have reached out for comment and await a reply.

what’s SOPA?
As the article states, SOPA = Stop Online Piracy Act. For more reading on the subject:
http://en.wikipedia.org/wiki/Stop_Online_Piracy_Act
It’s as neutral source on the subject that I could find.