A human rights groups has called on the Libyan National Transitional Council (NTC) to stop what it says are "the arbitrary arrests and abuse" of African migrant workers and black Libyans assumed to be mercenaries. Human Rights Watch said Sunday the NTC should release those detained as mercenaries "solely due to their dark skin color." The rights organization said the NTC should provide "prompt judicial review" to any detainees for whom there is evidence of criminal activity. Sarah Leah Whitson, HRW's Middle East and North Africa director, says "it's a dangerous time to be dark-skinned in Tripoli." She said the...