IMO this thread smells like a re-purposed "appeal to authority".
QFT.
The idea that you can just kill someone for opening their "stupid" mouth is something our society has evolved beyond...hopefully. That kind of society has existed, it's called the Dark Ages. Humanity seems to flash back to that every once in awhile, especially when cynical old curmudgeons with power don't like what they are hearing and don't have internal fortitude to consider humility.
So, lets be perfectly clear about what we're really discussing. Violence. Should violence or the threat of violence be used on people with opinions? If you think yes, then I'm sure you love the fact that the NSA is spying on every snippet of electronic communication and that with the NDAA you can be tossed into a hole and forgotten.
I'm sure almost everyone with a conscience is against the former even if they might consider the latter, because they recognize that these are the means to actually reach that end. Which begs the question, why even consider that end?
"Words are wind."