NASA: No Martian toilets means no Mars trip

[Moostache]

15. Robots do not inspire humanity.

If $$$'s spent is the only metric employed, then the cost-benefit analysis is always in favor of unmanned flights.
The problem with that approach is that it does very little to move people. Spirit and Opportunity were amazing successes, now try to find 10 people at random who can identify them...then ask the same people who was the first man on the moon.

The difference to me is also the benefit of repurposing our tax money from a war-footing and permanent hostility to a more future looking and positive one. Everything about our current spending decisions is hideously short sighted. Its time to change that and I just believe inspiring people is a better route than trying to control the world at the business end of another weapons system.