This was an awsome read. It is about those in towns occupied by the Nazi regime, especially those close to Concentration Camps. The primary questions the book seeks to answer are how and why non-Jews stood by and did nothing.
Some things that may apply to us in the days to come:
1) There is a psychological price to pay for not taking an initial stand against injustice. Your best chance of standing strong is when you act immediately, while you still have an "outside looking in" perspective. Once you have allowed yourself to be taken in and are actively engaged in (or not engaged in protesting) the activity, it is exponentially harder to remove yourself from the inside: you are now a cog in the wheel and have lost much ability to think and act in a circumspect manner.
2) Compartmentalization of your life (Public compliance versus private liberty: i.e., a double life) becomes necessary for psychological survival to those who have not lost their moral compass.
The problem with this, however, is that once one has created two realities he loses control of the public which will eventually and inevitably allow the public to control the private: thus, through complacency, losing all freedom and, more importantly, creating callousness towards the injustices taking place in the public.
3) Going back to the cog in the wheel: because you are not the one pulling the trigger (or even if you are), you will attempt to excuse and convince yourself of ultimate responsibility: "I am just doing what I am told." We give up our individual consciousness for the "betterment" of the collective/society.
4) Just one person who speaks up, INITIALLY (See point #1), has the potential to persuade a whole community to show empathy instead of apathy.