It is inevitable that a rightwing extremist will shoot up a public meeting or union hall somewhere. They are now being urged to bring their guns to townhall meetings, and use them. There have been threats of violence against union members and death threats against congressmen.
The goal, clearly, is terrorism, to frighten Americans away from their Constitutional right to peaceably assemble.
What began as astroturfing has devolved into an uncontrollable mob thirsting for blood. When the blood is spilled the debate over healthcare will change overnight into a movement to confiscate the mob's guns and indict those who have incited the violence (Glenn Beck, Rush Limbaugh, et. al.) for second degree murder.