> I ask myself every time I hear that Thiel is a "libertarian" _while also_ being the founder of the biggest surveillance dragnet ever created: what about surveillance is libertarian?

Surveillance does not directly violate the non-aggression principle, and a myopic adherence to minimal principles without any consideration to where they lead is the central feature of libertarianism.

> a myopic adherence to minimal principles without any consideration to where they lead is the central feature of libertarianism.

Your definition, maybe. Redefining that idea and assuming it is accepted as fact is a touch arrogant.

Surveilance means stealing intellectual property of surveiled people. If you're a TRUE libertarian, then you need to make sure that you arrange some kind of a contract with the people you surveil.