Tunisia was the focus of international attention when popular protest helped to topple the country's autocratic leader and triggered a wave of demonstrations across the region. But what happens next? Linda Pressley travels to Tunisia and meets those vying for political and business influence in its more open society. Amongst those she speaks to are Sheikh Rachid Ghannouchi, leader of Tunisia's largest Islamist party and, until recently, a resident of Hemel Hempstead.