Documentary about US pilots that "crash landed" in Switzerland...
 

Trying to remember the title of a documentary show on PBS years ago about US pilots and air crews that opted to finish the war by deliberately crash landing their planes in Switzerland. The title was something like "Whispers In the Sky."

Is this documentary still available and has a similar theme book ever been written about this episode of WWII?

The predecessor of Scandinavian Airlines used to use Boeing B17s as airliners after they had 'crashed' in Sweden.