I’ve lived in virtually every part of the country at some point in my life, and can say without reservation that the worst drivers in the nation are in California. But finally, after years of enduring left-hand turns from right-hand lanes, people doing 50 in the passing lane of the 101, and slamming on my brakes when the person yammering on their cell phone suddenly swerves into my lane, after all this I can now say I have cracked the code as to what's gone wrong.…