Missouri S&T military historian Dr. John C. McManus discusses the upcoming 70th anniversary of D-Day and his new book on the subject today and tomorrow on public radio KMST, 88.5 FM. Tune in at 4:45 p.m. today to hear McManus discuss D-Day with KMST’s John Francis, and tune in 9-11 a.m. Thursday, June 5, to hear him talk on the nationally syndicated Diane Rehm Show.