Say the San Francisco Fed decided to secede from the Federal Reserve System or the Bank of Greece started to print its own euro notes without the consent of the Eurosystem. What happens to a nation's currency when the central bank is split into parts? There is a possibility we might be seeing such a situation developing in Libya with the emergence of two different Libyan dinars. Libya's political scene is ridiculously complicated so I'll paint the picture in broad brush strokes. The Central Bank of Libya has several offices, the two relevant ones being the western one in Tripoli and the eastern one in Bayda. Prior to the Arab spring, each area was under the control of the Gaddafi government but both have since come under the control of competing regimes. Tripoli is run by the U.S.-backed Government of National Accord (GNA) while Bayda is under the control of the Tobruk-based House of Representatives. As I understand it, over the last few years of strife the two offices have...