RACHED GHANNOUCHI / TUNISIA’S CONSTITUTION   A conversation with Rached Ghannouchi, co-founder and President of Tunisia’s Ennahda Movement. Host Carol Castiel and reporter and broadcaster in VOA’s French-to-Africa Service, Idrissa Fall, speak with Ghannouchi about the role his party played in drafting and ratifying Tunisia’s new Constitution, considered one of the most progressive in the region. Ghannouchi underscores his belief in the compatibility between Islam and democracy and remains cautiously optimistic that Tunisia’s secularists and Islamists can bridge differences.