North korea's fake missile

On the 27th last month, North korea showed their intercontinental ballistic missile in the 60th anniversary celebration of the ceasefire agreement but it was found that missile was a mock-up. Because all of it's now focused on whether north korea succeed in developing ICBM, North korea would frighten the international society by showing a fake missile. North korea should be honest, There are no problems that can be solved with north korea's bluff. They must be a responsible country of the international society. 

http://www.npr.org/2013/05/07/181961581/are-those-north-korean-long-range-missiles-for-real