Exposing 'The Ratline': One man's quest to track a Nazi who escaped justice

Hypnotic, shocking and unputdownable: that's how the late John le Carré described the book "The Ratline". It tells the story of a senior Nazi, Otto Wächter, and his time on the run: first in the Austrian Alps, then in Rome where he came under the protection of a Vatican bishop. Wächter died in 1949 in strange circumstances while preparing to travel to Argentina on the "ratline", a shadowy pathway out of Rome for Nazis. The book follows author Philippe Sands' quest to find the truth, including meeting Wächter's son, who believes his father is innocent. Sands joined us for Perspective.