Sorry Dr. Hugo de Garis - The guy on the discovery channel who tells people that A.I. could kill us all, but it won't happed in his lifetime? Hey Hugo it's simple mate, if it's going to kill us all, then stop fucking working on it. Smart people invented the A bomb, even smarter people opposed it's development once they realised it's full potential - get the point.
The argument - but the bomb has helped keep the peace / but we all live in fear of it, but A.I. is much more scary, because unlike the bomb, we may not be able to control it, see section 4.
And now for the upbeat spin?