The meeting will include Mr. Obama, Vice President-elect Biden, White House Chief of Staff-designee Rahm Emanuel, Secretary of State designee Hillary Clinton, Secretary of Defense Robert Gates, Attorney General designee Eric Holder, Secretary of Homeland Security designee Janet Napolitano, Chairman of the Joint Chiefs of Staff Admiral Mike Mullen, Ambassador to the United Nations designee Susan Rice, National Security Advisor designee Jim Jones, Director of National Intelligence Mike McConnell and White House Counsel designee Greg Craig. A transition official provided CBS News with some background on the meeting: “There is one president at a time and this meeting is part of the work being done during the transition to be ready to hit the ground running on January 20.” “This is not the first national security meeting. President-elect Obama previously held a meeting with key members of his team on Monday, December 1st, the day he announced key nominees. That meeting included the Vice President-elect, Clinton, Gates, Holder, Napolitano, Rice, Jones. Focus of that meeting was Mumbai.” “There will be more meetings like this between now and January 20.”