Explorologist Ltd. is suing Brian Sapient in the Eastern District of Pennsylvania for copyright infringement, commercial disparagement, and appropriation of name or likeness. The suit concerns a YouTube video which Sapient uploaded. Although both Sapient and YouTube's servers are located in the United States, the copyright infringement claim is based on United Kingdom copyright law, and on a U.K. copyright which Explorologist allegedly holds on eight seconds of footage at the beginning of the video. EFF is handling this and a related case by Sapient against Geller; more information can be found on their case page.

Public Knowledge has signed on to an amicus brief in support of the defendent's motion for summary judgement.