I am one of world's 10 luckiest people: Billionaire Warren Buffett

Billionaire investor Warren Buffett said luck played a major role in making him one of the world's wealthiest people. "I may be one of...10 luckiest in...world," Buffett said. He credited his father, whose investment firm gave him an early introduction to stock market, saying he wouldn't have had the same advantage if his "father had been a plumber".