This noble pledge has endured trying hours in the United Nations history, and it still guides our work today. Yet the ideals of the charter are now facing a challenge as serious as any since the U. N.'s founding, a global movement of violent extremists. By deliberately murdering the innocent to advance their aims, these extremists defy the fundamental principles of international order. They show contempt for all who respect life and value human dignity. They reject the words of the Bible, the Koran, the Torah, or any standard of conscience or morality. They imperil the values of justice and human rights that gave birth to the United Nations, values that have fueled an unprecedented expansion of freedom across the world.