I'm throwing this out there, because I have always looked at NASA as an example of a government program that progressed our society in ways that the private market just couldn't do. At least in the beginning. We have so many modern conveniences now that are NASA designed. However our government no longer sees NASA as an agency to be funded, and to further our technology. Let alone go into space. I believe that if NASA had continued on it's path after the Apollo missions that by now we would be sending a permanent colony to the moon, and developing ways to mine for resources on Mars. What is their current mission? Oh yea, to tell the muslims how much they have contributed to the modern world. 
I believe that by patenting the incredible inventions that have come about through NASA the program could still be going strong without any public funding. Which is what I would like to see happen with the agency. Let NASA be absorbed by the Tech Companies who would benefit most from technological advancement. Patent the ideas that are taken to market. They say that there is no excitement for space exploration anymore, but how could there be when we are not exploring, not discovering.
Sorry for the rant, but FQ's post about the asteroid just got me thinking about this.
Opinions?
I remember the Gemini, and Apollo programs, compared to that the Shuttle program had all the excitement of a bus schedule.
It was essentially nothing but a scheduled bus service to the ISS .
The reason NASA did not patent the developments that came out of the program is because they were developed by private companies, like Raytheon.
Govt does nothing well, look at the Postal system, it is my opinion that it is time to turn space travel over to industry.
This is a case where "greed is good". If there is a profit to be made they will pursue it. and if there are X number of profit generating objects with in the insignificant ranges we now travel the idea that greater range will lead to more potential profit is just the spur needed to develop real space travel as opposed to just coasting around in the immediate vicinity of home.
Mars, the closest planet, is 20 years away with current propulsion technologies, to make it practical that needs to be cut to less than 5 years at least. As it stands there is no point in investing in a trip that will take 2 generations to complete.
Alternative propulsion methods have been bandied about since before WWII, it's time to get serious about them.
Another thing that has killed the interest in space, is the end of the Cold War.
We have no competition, no one is trying anything we haven't already done, We needed to develop missiles to put A bombs in Russia, we needed to develop satellites to spy on Russia, everything else was spin off technology from the military attempt to seize the ultimate high ground.
With out that spur the program has basically died of old age.