"Detractors insist that it is only a matter of time before the ALF inadvertently kills someone or pursues a course of violence. Some critics argue that the ALF has already injured or killed people, but they confuse the ALF with ultra-radical English groups such as the and the . While in solidarity with the ALF on many points, the Animal Rights Militia, the Justice Department, and the feel the ALF is too conservative in its policy of nonviolence. In contrast, they openly espouse physical violence against animal oppressors, unable to fathom why some believe that a human life has absolute value, especially if it involves a person inflicting violence upon animals. Consequently, these pro-violence groups employ fake poisoning scares to force companies to pull their products from the shelves. They target exploiters with booby-trapped letters fitted with poisoned razor blades. They set off bombs and they issue death threats. The Animal Rights Militia, the Justice Department, and the Revolutionary Cells graduated from the “all is justified” school, and they aim to ratchet up the conflict between activists and industry to new levels. Razor blade letters, bomb threats or bomb attacks, arson, harassment, death threats, and physical assaults have proven to be effective means of preventing and ending animal exploitation, and therefore will continue to be used by the most militant elements of the struggle."