U.S. Finds It's Getting Crowded Out There, Washington Post
"Uncertainty over the fate of President Bush's ambitious "vision" of a manned moon-Mars mission, announced with great fanfare in 2004, is emblematic. The program was approved by Congress, but the administration's refusal to significantly increase spending to build a new generation of spacecraft has slowed development while leading to angry complaints that NASA is cannibalizing promising unmanned science missions to pay for the moon-Mars effort. NASA's Griffin has told worried members of Congress that additional funds could move up the delivery date of the new-generation spacecraft from 2015 to 2013. The White House has rejected Senate efforts to provide the money."