Libya marks the second anniversary of the death of Muammar Gaddafi with the country on the brink of a new civil war and fighting raging in the eastern city of Benghazi, birthplace of its Arab spring revolution. Violence between radical militias and regular forces broke out on Friday night and continued yesterday, while the capital Tripoli is braced for fallout from the kidnapping earlier this month of prime minister Ali Zaidan. Federalists in Cyrenaica, home to most of Libya's oil, open their own independent parliament in Benghazi this week, in a step that may herald the breakup of the country....