Thailand's new prime minister has pledged to fix the country's "failed political system" and revive its economy. Abhisit Vejjajiva was sworn in Wednesday and delivered an inaugural address aimed at soothing divisions caused by six months of political unrest. "I am well aware that the political situation is abnormal," he said. "My first job is to end a failed political system." King Bhumibol Adulyadej, the country's constitutional monarch, formally endorsed Abhisit's nomination as prime minister Wednesday evening, making him the nation's third prime minister in four months.