HAVANA (AP) — Cuba on Wednesday presented a new book by Fidel Castro, who has not appeared in public since undergoing emergency intestinal surgery in July 2006 but who authorities claim spent more than 400 hours working on the manuscript. “La Paz en Colombia,” or “Peace in Colombia,” explores Cuba’s role in attempts to end Colombia’s civil war, which has raged for more than four decades. The 265-page book was presented during a Havana ceremony that Castro did not attend, though one of his sons was there, as was Ricardo Alarcon, head of the country’s rubber-stamp parliament.—-Contact The Daily Reveille’s news staff at [email protected]