NASA needed to learn how to manage its multi-billion-dollar budget better and recent disasters, including the loss of two expeditions to Mars, were part of the price we pay for space exploration, President Clinton said in an interview to be published on Friday. The “faster, better, cheaper” policy, which the National Aeronautics and Space Administration now admits probably cut things a bit too close, was a necessary discipline, Clinton said in an interview with the magazine Science marking the end of his eight-year administration.