I enjoy watching someone who in another thread suggested he was some great caretaker of the constitution sitting here and ****ting upon the rights to protest and the rights to free speech.
Last I checked, the police aren't thought police. You COULD burn a quran to incite and enrage other people. You could also do it out of protest. You could do it as a symbolic message regarding your own religions place above the others. You could do it as a broad condemnation of religion. There's many reasons you could potentially burn a Quran other than to incite people into violence.
The fire in a threater argument is absolutely retarded to try and compare. In that situation someone is stating something that would have little purpose other than to causea panic (if its done to be a "joke", the "joke" would only be "funny" because people react to it as if its real, ie panic). Furthermore, the reasonable universal reaction to a fire is to get away from that area which can cause a mob panic and rush that can unintentionally on the part of the actors bring harm to people. The person yelling fire is DIRECTLY interacting with the people inside the theater causing an immediete reasonably expected action that could cause harm to others.
In regards to the Quran, it is unreasonable to think burning it will result in the death of other people. The amount of militant muslims in the world is estimated at what, less than 10%? So not only would a Muslim need to find out about it, but it'd need to be one of those small percentage of muslims. This is a far lower level of expectation that the action is going to have a direct and immediete negative effect on other individuals than with regards to the fire analogy. Additionally, the actions by said extremist Muslims would not be a reactionary quick reaction to speech but would be a significant, deliberated, thought out, action. It is more akin to telling someone that they're wife is ugly and having that person then come back 3 months later and murder you than it is to the fire analogy. Because while it is a "reaction" of sorts to the Quran burning, its not an immediete reaction.
It is reasonable to suggest that yelling fire in the middle of a crowded threater, regardless of whose there, where that theater is, etc, is always likely to result in people attempting to exit the area quickly. It is not reasonable to suggest that a guy in the middle of a small town in Georgia burning a Quran on his front stoop is always likely to result in a muslim attempting to kill someone.
This is not just a stupid idea, but an unconstitutional one.