South Sudanese return ahead of vote

Thousands of Sudanese are making the trek south to be part of the historic referendum on separation from the north.

But for many their dream of returning home has left them without a vote as they did not register before leaving the north.

Al Jazeera's Andrew Simmons reports from Malakal, one of the main transit points for returnees between north and south, where people are living in primitive shelters.