Self-driving cars legal in both California and Nevada
http://www.cnn.com/2012/09/25/tech/i...nia/index.html
However, they are not allowed to operate right now without a licensed driver behind the wheel to take over in case of problems.
They have driven 300,000 miles total on Nevada roads so far.
Personally I think it would be freaky seeing a car driving itself, and I wouldn't feel comfortable around it.
As easily as humans can make mistakes, computers can be even worse, because they cannot make reasoned decisions in unusual situations. They are only as good as their programming.
I do think that technology to prevent accidents (such as not letting you steer into another vehicle or an object) could be very helpful to save lives. I just don't like the idea of the cars driving themselves.