For those who don't recall (either the novel or) the Levinson film,

It is easy to see parallels to the Shirley Sherrod case--she was accused of wrongdoing, and shortly thereafter evidence was provided which proved precisely the opposite of the accusation, exonerating her in rather short order (a day or two). And yet she was punished anyway... Why? In this case it wasn't exactly preemption, but because the accusation reached the broader public prior to the complete evidence, her image (and thus that of the administration) was tainted. A lawyer might describe it with a common saying: "You can't un-ring a bell."
Many have referred to this entire fiasco as a "teachable moment", but yet various interest groups believe there are different lessons to learn. I think the major, overarching, lesson to be learned is not an ideological one, and has nothing to do with politics (per se): We must carefully calibrate our 'filters' for news such that we do not rush to judgment before hearing all of the facts. In this modern age where news is passed from media outlets via Facebook, Twitter, Buzz, and other rapid-fire media sharing methods, it is often tempting to immediately pass on a salacious story in the hopes that you are the first one to "break the news" to most of your friends, especially if the news seems to provide support for views you may hold. But as popular media outlets appear to become increasingly partisan by the year, we must always consider the source (and it's bias) and remember to withhold judgment until understanding all of the facts.
While this is especially true for journalists, we all have a responsibility to do so if we are going to participate responsibly in the 24-hr news cycle by passing on information about current events by digital means. It's called digital responsibility, and it's high time we started advocating it!!!