Both Houses of the U.S. Congress have introduced new draft versions of the Orphan Works Act of 2008, a controversial bill about the use of copyrighted works whose owners may be impossible to identify and locate. The Stock Artists Alliance have defended the interests of professional photographers involved in stock image licensing by publishing their commentary and suggestions about Orphan Works. The SAA argues that the effects of the Orphan Works Act, if passed, would be felt worldwide, citing a similar UK study called the Gowers Review of Intellectual Property, which was published in 2006.