While what the Westboro congregation does is offensive and hateful and just plain rude, they obeyed local statutes about protesting and private property. So can the Court make judgements about what speech is right and wrong? Traditionally the decisions of the high court have strayed on the side of more freedom and more offense rather than restrict any speech. I want it to be known that I think that what the Westboro congregation preaches in their church and practices at funerals for our fallen heroes is incredible and horrible. I come from a military family and I know that I would not underestimate how I would react if this had been my family. That said, I think the Court would be wise to allow their horrible speech to continue, because I'm always wary of that old 'sippery slope' we always hear about. Just because most peope think it's wrong, doesn't mean we can stop others from saying or believing it. I always put myself in the shoes of those who are being censored. If I felt that passionate about anything, I would not want to be stopped just because others disagreed.
Stopping their speech would set a precedent for others who want to control other kinds of speech in the future, based on disagreement. Right and wrong are subjective and can change according to the cultural landscape, but laws are essentially permanent. I'm also not saying that the pendulum would EVER swing as far as to say that anything as offensive as what is being said in this case will be accepted. These are just dangerous waters the Court is treading. Essentially, their job is not to say what is right or wrong, but they do have to decide if what is happening is illegal or against the Constitution.
This WashPost article (http://wapo.st/btL6CB) gives a good overview of what is going on with the case and Westboro Baptist. The scariest part of this issue is the way that this group has twisted Christianity to preach hate and intolerance. They definitely do not believe in the same Christ that I do.