Social Media For The Anti-Social

The past few weeks have seen a lot of Social Media activity by Anti-Social people and groups. From socialist Islamists in Egypt to socialist Unions in Wisconsin, Social Media is being used to organize riots, protests and civil disobediance. This brings up a question about a collision of two ideals -

Is the use of Social Media for the purposes of inciting and organizing civil unrest a matter of Free Speech or is it an act of Conspiracy that is prosecutable under federal or state laws? The Patriot Act allows for surveillance of certain communications for the purposes of detecting terrorists and acts of terrorism. Certainly the destruction of government property, acts of physical violence and criminal trespassing could qualify as acts of terrorism.

While the odds of prosecution for these criminal acts is unlikely (at this point) it is conceivable that it could happen. What are your thoughts on where this could go and how governments might monitor or leverage access to social media communications to control the populace?