Essentially, this act authorizes the US AG to file civil suits against alleged copyright violators.
Bill Summary (S. 2237)
Protecting Intellectual Rights Against Theft and Expropriation Act of 2004 - Amends Federal copyright law to authorize the Attorney General (AG) to commence a civil action against any person who engages in conduct constituting copyright infringement.
Directs the AG to develop a program to ensure effective implementation and use of the authority for civil enforcement of the copyright laws, including training programs for qualified personnel from the Department of Justice and United States Attorneys Offices.
'Pirate Act' raises civil rights concerns [CNET News.com]