This evening, President Obama will give his first presidential address regarding our involvement in military action in Libya. What are the key questions Obama needs to answer? Do we know how long this mission will realistically take? How much will it cost in a time of great fiscal distress? And will Gaddafi have to be removed or not? We discuss it all with retired U.S. Army Lt. Col. Bob Maginnis, who is now a senior strategist with the U.S. Army.