Sum Rithy, a survivor of the Khmer Rouge, says the UN-backed tribunal must speed up the trial of two aging regime leaders. Sum Rithy, 62, is a leader among those survivors of the Khmer Rouge who have pushed for a complete tribunal process, which has so far only tried one defendant. The court is in the midst of a trial for former leaders Nuon Chea, 89, and Khieu Samphan, 84, the only two so far remaining at the court. But Sum Rithy says he fears they will not survive to see the end of the process. VOA Khmer Sok Khemara and Neou Vannarin reports from Phnom Penh.