“Today, the U.S. Court of Appeals for the Federal Circuit rightly decided that the US Post Office’s use of an image, based on a copyrighted sculpture, was not fair use. As a result, the Federal Circuit’s decision holds that the US Post Office is liable to the sculptor and remands the case back to the trial court so that damages may be determined. […] The Center for Internet Society (‘CIS’) filed an amicus on behalf of the Andy Warhol Foundation, and several other amici […]. In the amici, the CIS unsuccessfully argued that the US Post Office’s use was fair use, ‘We think fair use does and should protect this right, which is crucial to huge amounts of expression, including vast amounts of modern art.’” - story
Update: Also make sure to read this post.