North Korea has defied international warnings and gone ahead with a controversial rocket launch. Pyongyang’s defiance of international pressure to cancel the launch cast a cloud over a speech on international security delivered by Obama in Prague, during which he unveiled series of measures aimed at stopping the spread of nuclear weapons. In reality, the world is powerless. Insults and international pressure would not change the mind of Kim Jong Il. North Korean President is regarded as the world’s most dangerous man. As the Berber of Algeria say, “A thousand curses never tore a shirt.”