A few hours later Riti heard a raspy knock on the door. Two heavily built men entered the office and found Riti at his desk, rubbing his chin which was beginning to sprout hair. Due to the general acute food shortage most people in town were skinny but the two strangers looked well fed and healthy, an indication that they were new arrivals, most probably from Khartoum."Riti, how are you?" said one of the two men. He sounded friendly as if he knew Riti. Although Riti was quite surprised he didn't show it. The other man wore an expressionless face."You are the photographer here, aren't you?"Riti nodded. He didn't know the two strangers. He couldn't remember meeting or seeing them. He could swear he didn't know them. They were southerners, alright, but they spoke in fluent, refined Arabic. They spoke like people who had studied in good Arabic schools in northern Sudan."We are security. We are on duty. Can you get away from your desk for a minute?" The man said this while his colleague remained silent.Riti obliged.One of the security men, the one who didn't say a word at all, went to Riti's desk and pulled opene