Trustees at Danville Area Community College appointed Dr. Stephen Nacco as the school's 7th president Wednesday.  Currently part of the administration at Union County College in Cranford, New Jersey, Nacco will take over for the retiring Alice Marie Jacobs in late August.  He calls DACC 'an amazing asset in the community' with a 40-percent graduation rate, among the best in the U.S. for community colleges.