The same people who worry about the mythological angry middle class white Christian do not worry about anger in itself. Anger, in our culture, is “privileged,” as academics put it. It is a sign of authenticity that is rarely “interrogated,” if expressed by approved groups. You will not suffer for declaring that you are outraged, and you will often be applauded.
http://www.firstthings.com/onthesquare/2011/11/privileged-anger