Richard Wainio, director of the Port of Tampa, said he will resign in September to spend more time with his family. "My decision is purely personal based on family considerations and certain future issues," Wainio told the board of the Florida port authority in a letter. He said "I have very much enjoyed working with many TPA commissioners and our exceptional port staff for over seven years." Wainio, 62, has served as the port authority's chief executive since 2005 and...