SHAC has also been known to target companies that have indirect links to Huntingdon. For example, documents reviewed by ABC News revealed that Wachovia Securities was targeted not because it had a direct link to animal testing but because it was the third-largest investor in a pharmaceutical company that had a direct relationship with Huntingdon. In another example, SHAC targeted UPS because of its delivery function with Huntingdon.
SHAC has also been known to pursue customers of Huntingdon. The group has reportedly caused more than 100 firms to sever their financial relationships with the research lab since 2001.
A 2005 FBI intelligence assessment viewed by ABC News said, "One of SHAC's main tactics is economic sabotage. ...They have had a great deal of success targeting HLS shareholders ... through phone and e-mail blockades."
The FBI report also called SHAC's international campaign against Huntingdon Life Sciences "the most significant animal-rights crusade" in the history of the Animal Rights Movement.
The FBI said that 1,100 criminal acts have been committed since 1976 by the Animal Rights Movement and that "animal rights and eco-extremists" are "the FBI's No. 1 domestic terrorism priority."
ABC News' Richard Esposito contributed to this report.