Idaho Drivers Are #1

A survey from an insurance company says Idaho has the most knowledgeable drivers in the country; in this case, I figure that they might actually have it right. While people here complain endlessly about how bad traffic is and how bad the drivers are (especially the "new arrivals bringing their bad habits from California") the fact is that the drivers here seem generally better than most other places in the country I've been to -- which is most of the country (every state but Alaska). And where does the survey say the least knowledgeable drivers are at? Here are the bottom five:
47. Rhode Island
48. Massachusetts
48. District of Columbia
48. New Jersey
51. New York
Any surprises there? While the Northeast does seem to have the worst drivers in general, the worst U.S. city I've ever driven in is Orlando -- the combination of all the tourists and 87 year olds who can't see over the dashboard makes for a perfect storm of lane-swerving, red-light-running hysteria.

It's well agreed, however, that when it comes to bad driving, the U.S. doesn't have anything on the rest of the world. Since most of my readers have traveled fairly extensively, I'd be interested to see where you believe the worst drivers in the 1) U.S., and 2) rest of the world are, based on personal observation only. (You can't just say "Cairo" because you know the worst drivers are there if you haven't seen it for yourself.) For me, the answers would be: 1) Orlando, and 2) Pusan, South Korea. Let me know what you think, and provide humorous anecdotes if possible.