BRUSSELS, June 18 - Something shattered in Europe Friday night. The leaders of the 25 European Union nations went home after a failed two-day summit meeting in anger and in shame, as domestic politics and national interests defeated lofty notions of sacrifice and solidarity for the benefit of all. The battle over money and the shelving of the bloc's historic constitution, after the crushing no votes in France and the Netherlands, stripped away all pretense of an organization with a common vision and reflected the fears of many leaders in the face of rising popular opposition to the project called...