Tunisian polls open for historic presidential run-off

TUNIS (Reuters) - Tunisians began voting on Sunday in a presidential run-off election that completes the country's last steps to full democracy nearly fours years after an uprising that toppled autocrat Zine El-Abidine Ben Ali. With a new progressive constitution and a full parliament elected in October, Tunisia is hailed as an example of democratic change for a region still struggling with the aftermath of the 2011 Arab Spring revolts. Sunday's ballot has emerged as a race between a former Ben Ali official recasting himself as a technocrat statesman and the incumbent who claims to defend the legacy of the 2011 revolution that forced Ben Ali into exile. (Reporting by Patrick Markey; Editing by Robert Birsel)