Will Ron Paul get the JFK treatment if his presidential bid reaches the point where it appears he may get the nomination, or "heaven forbid", the presidency?
Consider the enormous amount of money at stake in federal programs, especially the warfare / welfare bureaucracies.
Organizations tend to be like cornered animals- they will do whatever they have to when they feel their lives are threatened. And Government is the largest organization, with the most capacity for violence, both overt and covert.
Watch "Why we Fight", or check out whywefightmovie.com - this url isn't loading right now, but I'm pretty sure it is correct.