Re: @Phil Dude
Folk who care about edge cases are the sort you want working on safety-critical stuff! Typically they are the ones to trust your well-being to. As for reliability, the current US death rate is around 1-2 per 100 million miles driven, or about 150-250 per million vehicle - years:
http://www.census.gov/compendia/statab/2012/tables/12s1103.pdf
So an autonomous car has to be pretty good to match that. Sure humans do really dumb things, and they are easily distracted, etc, which probably covers a good 90% or so of those deaths. But cars have to at least match that 2E-8 fault/mile figure under real-world conditions to be taken seriously.