OK, it's a toss-up, regular blog or political...
NASA has regular space missions. Some say they are useless. There's also the point that they're expensive in a time that we're having economic problems.
First, on the economy, that's a valid point. My first thought was that we could delay missions for now until we can better afford them. Then I realized that large economies are built around these industries; if we shut them down, that would just cause more economic problems, albeit in specialized sectors. If it were planned properly, maybe, but we now have people and companies relying on these missions for their incomes and salaries.
Second, on the missions themselves:
Step it up! We should have manned stations on the moon by now. And civilian colonies on the moon. We've been visiting for FORTY YEARS! Why are we just playing with it? Most of the missions we're doing are with obsolete equipment. The only good these missions do is to enable scientific labs on the space station. Why have we not developed better propulsion systems? Better defensive systems? Antigravity systems?
It seems like our space administration is, like most in government, more interested in saving their own jobs than actually developing new tech and making new discoveries. How else can you explain our more advanced space tech being 20-year-old shuttles? If the problem is that they don't have sufficient funding, maybe they need to use the money more wisely. They're not getting anything done as it is. Maybe they, like many government agencies, are paying too much in too many salaries, and not on the research and equipment.