Hostile surroundings, no security worries

If you're planning just about anything big, important, expensive or highly symbolic here on earth, you're pretty much going to have to obsess about security at every step of the way.   Among the many small joys of the NASA Mars rovers is that they can do their job without worrying about the bad guys.  Sure, security is pretty tight on the ground before launch, but once the rockets are away it's just us vs. the laws of physics. 

I hope I live long enough to read about the first crime committed on Mars.  Wonder what it’ll be.  Probably copyright infringement.