http://www.nytimes.com/2015/06/16/opinion/the-other-terror-threat.html?ref=internationalThe rest you can google and read your preferred news source.
I notice that racial tension has increased markedly in the US since I was a student there. It was totally not like that in the 1990s.
It is my belief that this tension comes from several sources, and will not easily subside.
1) Demographic. Whites are losing their majority.
2) Cultural. USA is becoming more multicultural, so many people are losing sight of their identities. Identity is becoming more contested.
3) Increasing gap between rich and poor. This creates a frustrated underclass of white unemployed, the traditional source for right wing 'nativist' militants in the US.
4) Election of Obama has caused a lot of right wing politicians and news sources to really go ballistic. They really can't stand the idea of a black man in charge. Believe me, Fox news was nowhere so racist and fear mongering back in the 1990s.
5) Increasing availability of guns and a decrease in social cohesion makes it easier for lone wolf individuals to do extreme things.
I don't see how these tensions will die down in the next 20-30 years because they are social trends and trends take many years to change. So I am pessimistic.
XXX
On a side note, I am totally opposed to the death penalty, or even prison, for Dylann Roof the Charleston shooter. I would even release him from prison.
I am normally a very law and order guy. Why not severely punish him?
Well, ok, he's young. He's got an entire life ahead of him. But not that.
Don't create a martyr. Humiliation is far more important for a racial supremacist like him, and it serves far better as a disincentive for other would be shooters.
Dylann Roof should be sentenced to life... as a janitor.
For black owned and black frequented establishments.
He should be only allowed to clean toilets (no electrical or boiler room work).
He should clean toilets 12 hours a day from Monday to Saturday, and be forced to attend only black churches on Sunday mornings. He can clean more toilets for black people on Sunday afternoon. And he can do that for the remainder of his natural life. In fact he should be sent to a black neighbourhood of Charleston where he must walk his rounds cleaning toilets for every black household and business.
How's that for a really deterrent punishment?