The most successful nazi interrogator

http://militaryhistorynow.com/2013/12/18/we-have-ways-of-making-you-talk-kindness-not-torture-yielded-more-for-intel-for-this-nazi-interrogator/
Interesting.  I'd never heard of this guy before now. Of course the Spanish Inquisition was way ahead of him...
http://www.youtube.com/watch?v=CSe38dzJYkY