" It was a path chosen by feebleminded people who were morally incapable of confronting evil. He saw many parallels between the Nazis, the communists, and these jihadists. They were all sociopaths at heart—obsessed with their own tribal desires and utterly incapable of conferring justice or compassion on those outside the tribe. If you were not one of them, you were a lesser human, and thus deserved to be treated in any way they saw fit. And if that meant blowing up airliners and buses full of innocent civilians, then so be it. "

― Vince Flynn , Kill Shot (Mitch Rapp, #2)