The distinction here is between a robot that is designed to do what its
owner wants - including asking "are you sure?" when its owner asks it to
do something potentially stupid - and a robot that is designed to thwart
its owner's wishes. The former is hard, important work and the latter is
a fool's errand and dangerous to boot.
-- Cory Doctorow. "Why it is not possible to regulate robots",
The Guardian, Apr 2, 2014
http://www.theguardian.com/technology/blog/2014/apr/02/why-it-is-not-possible-to-regulate-robots