Answer to question 1:

We think that both forms of resistance require courage. But without doing violence to others, isn’t it braver to confront others with their actions while they are willing to physically harm you? If you stand up for justice through nonviolent action, you may risk your life, injury, or your job. That takes a lot of courage and training.

For example, read here a short story of two courageous protection officers from Nonviolent Peaceforce in South Sudan.