In a chaotic environment where Americans are being pitted against each other by reckless rhetoric of the Obama administration the most easily influenced will be the first to act.
Make no mistake about it, this is the result of the "99%", the "war on women", the "tax the rich", the "you didn't build this", and other ploys that the marxists have used to divide the country.
Historically, Marxists cornered the market on violence. They were bombing in America. In the early 1900's, the US government had the good sense to deport them. Now we have them in the White House. Markist bomber (SDS) Bill Ayers is O's pet. Political affiliation is most decidedly relevant.
The fact is that he is an American who was driven to this.
Driven! How? Are you saying that old liberal canard, "we are all responsible?"