[ The Atlanta Journal-Constitution: 1/29/04 ] NASA director defends Mars plan By LARRY LIPMAN The Atlanta Journal-Constitution WASHINGTON -- Defending President Bush's goal of sending a manned mission to Mars in the face of skyrocketing budget deficits, the nation's space agency director told a skeptical Senate panel Wednesday that there are some things only humans can do. Testifying before the Senate Commerce, Science and Transportation Committee, NASA Administrator Sean O'Keefe said Bush's space exploration plans were both fiscally prudent and realistic and would comply with the administration's goal of cutting the budget deficit in half by the end of the...