on the moon. then apollo 11 astronaut michael collins, national air and space museum director, and former nasa administrator reflect on the political and foreign policy impact of the apollo program. and later, air force veteran and former nasa flight director gene kranz discusses his life and career culminating with stories about apollo 11 and apollo 13. >> may 5, 1961. freedom 7. the united states took the first small step on its journey to the moon. america's first man in space,