The University of Central Florida's provost and executive vice president says addressing hunger should be a huge focus at Iowa State University.  Dale Whittaker took part in a public forum Wednesday in Ames. He's one of the finalists to be the school's next president.  Whittaker says Iowa State can address hunger if it continues to improve where it already succeeds.  He says faculty must be retained if that goal is to be reached. Like the other two candidates who've visited this week, Whittaker stressed the importance of student graduation rates.  The fourth finalist, ISU Agriculture and Life Sciences Dean Wendy Wintersteen will be on campus for a public forum today. The Board of Regents will meet October 23rd to hear from the search committee, interview the finalists and select a new president.  The first two finalists for the postion were on campus Monday and Tuesday.