As long as you need to play "tit for tat", I should bring up the fact that the extremists at the G20, the RNC and the ELF incidents tend to identify themselves as across the board anarchists - not Democrats or Liberals. The story about the Town Hall meeting that you cite has been
debunked as b.s. (at least the way you're citing it).
I think what's frightening people like me is that the threats and violence seem to be coming from people who identify themselves as Republicans and Teabaggers.