Interviews began today for a new UN secretary-general

Every five years, the United Nations looks for a new secretary-general. Job interviews began today in the assembly chamber to start the search for the next one. There are four candidates, less than half the number when there was an opening 10 years ago. As The World's Hosts Marco Werman and Carolyn Beeler explain, the UN's first secretary-general called it "the most impossible job on earth."