VATICAN CITY (Reuters) - Pope Benedict called on Tuesday for a "world political authority" to manage the global economy and for more government regulation of national economies to pull the world out of the current crisis and avoid a repeat. The pope made his call for a re-think of the way the world economy is run in a new encyclical which touched on a number of social issues but whose main connecting thread was how the current crisis has affected both rich and poor nations. Parts of the encyclical, titled "Charity in Truth," seemed bound to upset free marketeers because...