TIMISOARA, Romania – To the strains of strings playing Christmas carols, Romanians paid homage Wednesday to the fighters who took to the streets of this Transylvanian city 20 years ago, sparking the revolution that swept Eastern Europe's most repressive dictator from power. It was here that residents flocked to the defense of an ethnic Hungarian dissident pastor who was being threatened with forced relocation, leading to rapidly escalating confrontations with police. The next day, police, army and secret service units began firing at protesters, the start of six days of fighting that subsequently spilled over to Bucharest and led to...