There's an interesting video about that: http://archives.radio-canada.ca/guer...e/clips/10490/

There's interviews with Otto Kretschmer, Rolf Schauenburg and Desmond Piers.

It's in french but most of the video are interviews in english (except for Schauenburg who mostly speaks german but sometimes speaks english). The video was made in 1985 but the quality is not that bad (you can go on full screen).

Esp. since the individual in question already was keelhauled for 6 months and you'd think he'd be on his best behavior now...