I'm reading Fanon's book 'Black Skin, White Masks' and are struck by his broad sense of solidarity, when it comes to injustice in the world. This comes in the context of the struggles of people against injustices all over the post-independant continent. He qoutes, Karl Jaspers extensively,
There exists amongst men [sic] because they are men, a solidarity through which each shares responsibility for every injustice and every wrong committed in the world, and espescially for crimes that are committed in his presence or of which he cannot be ignorant. If I do not do whatever I can to prevent them, I am an accomplice in them. If I have not risked my life in order to prevent the murder of other men, if I have stood silent, I feel guilty in a sense that cannot in any adequate fashion be understood juridically, or politically, or morally..... That I am still alive after such things have been done weighs on me as a guilt that cannot be expiated.
Somewhere in the heart of human relations an absolute command imposes itself: In case of criminal attack or of living conditions that threaten phsyical being, accept life only for all together, otherwise not at all. [La culpabilite allemande, p 60-61]