Yes, Google's self-driving car will honk at you — sometimes

Although Google has started showing off its driverless car to the media, there are still a surprising number of questions left unasked about how it operates. Some of these questions are hiding in plain sight

When you step into the prototype vehicle, you're confronted with just four buttons — start, stop, windows up/down, and temperature control. Google has taken the steering wheel out altogether. The car takes care of everything you'd normally do.

But what about the horn?

Will the car stay stoically silent when it gets cut off? Will it ignore the idiots at every intersection? Or will it be more like the car from this year's NPR April Fools' parody, with a perfectly-programmed modicum of road rage? Read more...