A better way to run pre-crime
Pre-Crime presents the ultimate brutal choice: Would you give up all your civil liberties for a system which could completely abolish murder? Of course the downside and point of contention is that in the movie it involved punishing people who had not yet actually committed any crimes.
However, as I was watching, I felt everyone was overlooking a better way: Don't include the punishment. Just stop the murders without punishing the future offenders.
This may seem silly. Why let people you know were going to kill off the hook? Well they haven't committed the crime yet, and more importantly, the primary purpose pre-crime is still accomplished: Preventing murders from happening. Lives are still saved.
That way seems to satisfy the issues of both civil liberties and crime fighting: You still stop the murders and save lives, but without punishment there is no violation of civil liberties nor any concern for innocent people being targeted. Even if the pre-cogs were to get an event wrong, it wouldn't matter because no harm would result.
Of course there is still the issue of the pre-cog units being horribly abused in order to run the system. But in terms of running pre-crime, this would be the perfect way to do it. What do you think?