NASA's Plan to Visit an Asteroid Faces a Rocky Start, Scientific American
"What the critics don't seem to understand is that if we don't send humans to an asteroid that is moved closer to Earth, we will send humans nowhere for the foreseeable future, which means the next decade or two," Friedman says. "If we drop this mission, our planned rockets and crew modules can go out as far as the moon but we won't be able to land without investments that are frankly unrealistic right now." ARM's harshest critics, asteroid scientists such as [Mark] Sykes of the Planetary Science Institute and M.I.T. professor Richard Binzel, remain unconvinced. "It's an empty threat to say if you don't take this thing that came from nowhere you'll get nothing and that will be the end of everything," Sykes says. "Well, you know, okay, fine--pull the trigger, guys. Maybe some people don't get the toy that they want but there are other options our leaders can pursue."