Here is an interesting interview published by George Mason University’s History News Network with author Dr. Gerald Steinacher (Nazis on the Run: How Hitler’s Henchmen Fled Justice) who contends there was no formal ODESSA that helped Nazi war criminals escape Europe and justice, but rather an often loose (maybe that’s not the right word) affiliation between the Catholic Church in Italy and the International Red Cross that facilitated the movement of famous, and not so famous, Nazis to freedom intermingled with legitimate refugees.
Author Steinacher warns that this is basically a standard practice (or cover) for undesirables to be among large refugee population flows. NO! you’re kidding!