17:44

NSA wiretapping -- a 4th Amendment violation? Blake Norvell at TEDxSMU

25:58

Germany: Low Crime, Clean Prisons, Lessons for America | Jeff Rosen | TEDxMountainViewHighSchool

16:13

Why do we celebrate incompetent leaders? | Martin Gutmann | TEDxBerlin

19:25

Living in a surveillance state: Mikko Hypponen at TEDxBrussels

22:01

There is something you should know about epilepsy and cannabis | Jokubas Ziburkus | TEDxVilnius

21:26

The mathematics of weight loss | Ruben Meerman | TEDxQUT (edited version)

20:19

Why you feel what you feel | Alan Watkins | TEDxOxford

17:26

The social responsibility of business | Alex Edmans | TEDxLondonBusinessSchool