Life Sciences Research Inc, is the parent of Huntingdon Life Sciences (HLS), a scientific research company that periodically uses animal testing to develop cures for diseases such as cancer and AIDS. Animal rights activists have long protested HLS' operations -- while also targeting connected individuals and associated companies -- with some even invoking illegal methods including intimidation, physical violence, vandalism and identity theft. In response to the New York Stock Exchange listing, however, two activist groups, Stop Huntingdon Animal Cruelty and Win Animal Rights shifted the brunt of their protest activities to the stock exchange itself and vowed to continue campaigning until the listing was reconsidered. In many instances, companies are unable to take action against activists. Companies have also used the judicial system to protect their employees and customers. But for other companies facing similar pressure from activist groups, additional security measures and renewed legal action may prove to be an effective option to mitigate the risk to their employees and facilities.