"I have no desire to do a Mars landing on our own," Bolden said (two years ago).
http://usatoday30.usatoday.com/tech/science/space/story/2012...
I've more faith in Musk than in Bolden. "[going to Mars has] always been a goal of SpaceX. We're hoping to develop the technology to do that in probably 12 to 15 years."
http://www.latimes.com/la-oe-0801-morrison-musk-spacex-20120...