A container ship sails on the Panama Canal after passing a set of locks in Panama City

A container ship sails on the Panama Canal after passing a set of locks in Panama City August 14, 2014. Dubbed one of the “seven wonders of the modern world”, the Panama Canal is preparing to mark its 100th anniversary from August 15 to 17 amidst a tough economic climate, greater competition and an expansion plagued by cost overruns and delays. REUTERS/Rafael Ibarra (PANAMA – Tags: POLITICS BUSINESS TRANSPORT ANNIVERSARY)