Billionaire investor Warren Buffett applauds as he speaks on the topic of “Women and Work” during a sit-down interview with Fortune’s Pattie Sellers in front of an audience at the University of Nebraska at Omaha’s College of Business Administration, in Omaha, Neb., Thursday, May 2, 2013. Buffett said that most of America’s prosperity was created using only about 50 percent of its talent _ the men. So he’s confident the country will prosper as more women excel in the workforce. (AP Photo/Nati Harnik)