'South Sudan has a crisis of leadership'
After many delays, South Sudan's Vice President Riek Machar has returned home, where he was re-sworn in to his old job more than two years after his dismissal. That sacking triggered a brutal civil war that pushed the world's newest country to the brink of collapse. Today, South Sudan's political arch-rivals say they have made up. Or have they? What does this mean for their war-ravaged nation? FRANCE 24’s Leela Jacinto asks David Shinn, former US ambassador to Ethiopia and Burkina Faso.