L2G:
 I can offer no defense for violence committed for any reason other than the protection of another life, committing violence, for an "idea"  is what brings up the intolerance that leads to much of the pain and suffering we see in the world today.  Democracy, either you believe in it or you don't, using force or the threat of violence, to adopt my outlook on any subject, makes me no better than what ISIS is doing today.

 Now protection of an idea, once excepted, is something else again.