Archbishop Oscar Romero of El Salvador was assassinated because of his defense of the oppressed. He said, "Let those who have a voice, speak out for the voiceless."
http://en.wikipedia.org/wiki/Image:Martin_Niemoeller.jpg They came first for the Communists, And I didn’t speak up because I wasn’t a Communist;
And then they came for the trade unionists, And I didn’t speak up because I wasn’t a trade unionist;
And then they came for the Jews, And I didn’t speak up because I wasn’t a Jew;
And then . . . they came for me . . . And by that time there was no one left to speak up."