ambassador to the united nations, samantha powell, is there and met with the government. it came as announcements of $15 million in aid. andrew simmons reports on a new effort to bring peace >> a military handover that is meant to make a difference to the traumatised people of the central african republic. the car peacekeepers are replaced by a larger force. another military acronym for the largest force of its kind. it will try to calm the car, which is on the brink of killing and the threat of genocide is present. it's twice the size of its existing force and will double the number in the coming weeks to 6,000. with the military build up more political pressure is bearing down on the interim president, michel djotobia, to calm the anger and threaten full justice for anyone involved in the atrocities. >> we have to discuss the transition, to really insist on what needs to be done to prevent further atrocity crimes. in other words, it is critical that a message comes from himself to make sure that nobody will be immune from any form of persecution. >> here in bossongoa, a