Another American has secured the presidency at the World Bank, extending the United States' hold over the 187-nation development agency.Jim Yong Kim, the former president of Dartmouth College, will succeed Robert Zoellick, who is stepping down after serving five years as the President of the World Bank. Kim was a nominee of President Barack Obama and was selected Monday in a vote by the World Bank's 25-member executive board.Kim has vast experience with the third world, having traveled to many developing countries to help improve health and stability. He is a physician and pioneer in treating HIV/AIDS and tuberculosis in the developing world. He was picked over two other candidates that were nominated by developing countries. Kim will start in July.