Vice Chairman of the Joint Chiefs of Staff Gen. James Cartwright, U.S. Marine Corps, talks about plans to destroy an unresponsive U.S. reconnaissance satellite with an interceptor missile during a Pentagon press briefing on Feb. 14, 2008. The 5000 lb. satellite would pose a possible risk to life if allowed to fall to Earth due to the large quantity of dangerous hydrazine rocket fuel onboard. Cartwright was accompanied by Assistant to the President and Deputy National Security Advisor Ambassador James Jeffries (left) and NASA Administrator Michael Griffin.