This was a landmark happening in the arena of Human Rights as to a very large extent, it ended the immunity of a ruler against violation of Human Rights. Recent hanging of Saddam Hussein perhaps would have had the same effect, but for the flawed law procedures and blatant desire to hang him, irrespective of trial outcome.
"Since Human Rights violations are usually committed by state officials, agents or persons otherwise acting "under color" of State authority, State (or sovereign) thus imposes a significant constraint on the use of U.S. courts in civil suits concerning human rights violations committed abroad," http://www.jstor.org/view/00029300/di007418/00p0336n/0
Human Rights violation could be anything from discrimination to genocide, apartheid, holocaust torture, police encounter killings, or illegal executions of political opponents. In United States, The Homeland Security Enhancement Act of 2003 (HSEA) was opposed by Human Rights Watch, a non-governmental organisation committed to upholding human rights because "The CLEAR Act and HSEA require state and local jurisdictions to pass laws or otherwise authorize state and local police forces to investigate, apprehend, detain, or remove non-citizens for civil violations of U.S. ...Show more