Police Nationale du Congo officers who fled Goma when M23 rebels took over the city Nov. 18, 2012, return on a barge to the port of Goma, eastern Congo, Friday Nov. 30, 2012. The police force were returning to resume control on Friday, as had been agreed by the regional bloc. Rebels in Congo believed to be backed by Rwanda postponed their departure Friday from the key eastern city of Goma by 48 hours for ìlogistical reasons,î defying for a second time an ultimatum set by neighboring African countries and backed by Western diplomats. The delay raises the possibility that the M23 rebels donít intend to leave the city they seized last week, giving credence to a United Nations Group of Experts report which argues that neighboring Rwanda is using the rebels as a proxy to annex territory in mineral-rich eastern Congo.(AP Photo/Jerome Delay)

Photo by: Jerome Delay

Police Nationale du Congo officers who fled Goma when M23 rebels took over the city Nov. 18, 2012, return on a barge to the port of Goma, eastern Congo, Friday Nov. 30, 2012. The police force were returning to resume control on Friday, as had been agreed by the regional bloc. Rebels in Congo believed to be backed by Rwanda postponed their departure Friday from the key eastern city of Goma by 48 hours for ìlogistical reasons,î defying for a second time an ultimatum set by neighboring African countries and backed by Western diplomats. The delay raises the possibility that the M23 rebels donít intend to leave the city they seized last week, giving credence to a United Nations Group of Experts report which argues that neighboring Rwanda is using the rebels as a proxy to annex territory in mineral-rich eastern Congo.(AP Photo/Jerome Delay)