THE BATTLE FOR MARTIN LUTHER: Martin Luther, the German priest who split the Catholic church and began the Reformation, was born 500 years ago. Today, East and West Germany both struggle to claim him. From East Germany, Bernard Clark reports on how the Marxist government has tried to transform Luther into a revolutionary hero. LEBANON - CRUSADER BATTLEFIELD: The Christian and Muslim militia, who have been fighting around Beirut, trace their enmity back to the first Crusades. How does the history of the Crusades still affect the Middle East power struggle today?