Human Rights Watch: In a joint operation in the Darfur region of Sudan, government troops working with Arab militias detained 136 African men whom the militias massacred hours later, Human Rights Watch said today. Human Rights Watch has documented dozens of attacks by Arab militias, known as janjaweed, in almost a month of research inside Darfur. All but two of the attacks were carried out in conjunction with government forces. "The janjaweed are no longer simply militias supported by the Sudanese government," said Kenneth Roth, Executive Director of Human Rights Watch. "These militias work in unison with government troops, with total impunity for their massive crimes."