Khartoum has warned traders from northern Sudan of the dangers of working in the south of the country, ahead of the south's referendum on self-determination. <br /><br />The Sudanese government says the traders are at risk of attacks by southerners if unrest between the two regions erupts.<br /><br />But Anita McNaught reports from Juba in South Sudan on how some northern businessmen there don't share that viewpoint. <br /><br />[December 11, 2010]
