A student walks past an electoral billboard in Tripoli May 28, 2012. The head of Libya's National Transitional Council said he expected an election for the national assembly would be delayed, holding up a landmark vote in the transformation of the country following the fall of Muammar Gaddafi. The election for an assembly that will draw up a new constitution was originally scheduled for June 19. The billboard reads, "Crucial stage. The election of the National Congress - you must know who you choose". REUTERS/Ismail Zitouny (LIBYA - Tags: POLITICS ELECTIONS)