BY WILLIAM H. FREIVOGEL / Richard Dudman, the former chief Washington correspondent of the St. Louis Post-Dispatch, turned 95 on May 3. I don’t believe in heroes, but Richard Dudman is my hero. So many reporters and editors get tired, burned out or cynical. Not Dudman. He never has lost his love for a big story or his intrepid pursuit of the truth in the face of danger. Dudman always kept his suitcase packed so that he could make it to the airport before editors back home had second thoughts about the cost of an international trip.