Secretary Rumsfeld announces major changes to national security space activities at a news briefing. Secretary of Defense Donald H. Rumsfeld announces major changes to national security space activities at a Pentagon news briefing on May 8, 2001. The changes are to improve the leadership, management and organization of the nation's defense and intelligence space program. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 540358-M-HVL56-544.jpg Photo Gallery