One has to wonder, regarding this arrest, whether law enforcement agents in the U.S. actually believe they have nothing better to do. Assuming the propriety of the charges, and that a crime was committed 32 years ago, is it worth the costs involved in prosecuting at this late date, not to mention the discord that is likely to result to the life of the girl, now woman, involved (one hopes she was consulted, and will cooperate, as would seem necessary to any successful prosecution; but who knows?), the media distraction, etc.? I would think this money and energy be would be better spent on other things.
The only Polanski film I know anything about is Chinatown, and it's one of my favorites. But I have no special regard for this now rather elderly man, and don't believe the crime involved is insignificant. Ultimately, though, in this and in everything it's important to establish priorities and intelligently allocate resources.