That's my angry duck face in the title.
Quack QUACK
This video (LINK), filmed in 2011 at the TEDglobal conference in Edinburgh, Scotland, is about lying: who lies, why liars lie, how lying affects our culture, and more.
It is only 20 minutes long, but worth an hour.
Also, I need to say that although the title of the talk is "How To Spot a Liar," this is NOT A HOW-TO VIDEO.
EDIT: This gives a totally "NT" perspective. I edited to clarify why I posted it in the "general autism discussion forum"