Ethiopian leader Meles Zenawi dies at 57

he Ethiopian prime minister, Meles Zenawi, has died.<br /> <br />The 57-year-old, who had been seriously ill for several months, had been in power since 1991.<br /> <br />The country's deputy prime minister, Hailemariam Desalegn, has stepped in as interim leader.<br /> <br />Al Jazeera's Peter Greste looks back at his political career.