In our response to unsettling news we can easily react with self-righteousness, sure that our "dharmic" view is the "right one" and feeling superior to those who act in ways we don't understand. But the Buddha asked us to put aside any such arrogance. Through genuinely trying to understand another's perspective, we can cultivate true humility for our ignorance of their reality and greater understanding about the thinking behind their actions. Then our response, which might be one of fierce compassion, is not coming from hatred and ill will but from compassion and wisdom.
This talk includes some thoughts on white privilege as well as Andrew Harvey's brilliant audio clip on Sacred Activism.