NASA does a great job of communicating with people who are...

NASA does a great job of communicating with people who are already predisposed to support portions of the agency's programs. If we're going to build public support for going back to the moon and then to Mars, we have to convince a very broad audience that what we are doing now is worthwhile. Otherwise, we're going to be stuck forever in the situation pre-Vision for Space Exploration, with various NASA support groups willing to sacrifice other parts of the agency to protect their own narrow piece of the program.