But until then, according to the studies we have available so far, driverless cars are far less safe than regular cars. One out of every 12 in California got in accidents over the course of just six months. And a longer study of all accidents involving autonomous cars between 2012 and 2015, compared to those involving just regular ones in 2013, found that the former were five times more likely to get into crashes. Even when they controlled for the fact that people don't usually report minor dings or fender benders, the self-driving cars were still two times as dangerous.

And even though there are only a handful of them on the roads, they have already been responsible for one death. In May, a Tesla driver in Florida put his car in self-driving mode and popped a Harry Potter film in his portable DVD player. Then his car decided to make a simple lane change. Unfortunately, it couldn't detect the difference between a clear blue sky and the large white side of an 18-wheel truck, and bam, J.K. Rowling could add another innocent person to her kill list.

Michael_Donkin/iStock
Never forget.

If they are going to be perfect one day, why so dangerous now? Well ...

Like some kind of ridiculous goody-two-shoes who brags about how well they did on their driving test and the fact that they have never gotten a traffic ticket, autonomous cars are programmed to absolutely always follow the law. Again, one day this means they will be a lot better than people, because they won't be so distracted by rocking out to Whitesnake that they blow through a stop sign.

YouTube
"I promise this has a perfectly logical explanation, officer ..."

But for now, while they are on the roads with cars that still have drivers in them, it means they can't react to ambiguity. NO ONE follows traffic laws all the time. How many times have you sped up to make a red light, or merged into traffic that was going above the speed limit? You have to be able to balance what is legal with what is safe in the moment. Driverless cars won't be able to make decisions like that, but are surrounded by people who do, which will lead to accidents. In fact, all those crashes in the studies mentioned in the first point involved some form of human error -- usually a regular car hitting an autonomous car -- because the human driver expected the self-driving car to act how a person would in that situation, not a computer.

James Brey/iStock
"It probably says 50 under there."

This is why some lawmakers are getting nervous about this new technology. After Uber launched four driverless cars in Pittsburg in September, a Chicago alderman preemptively proposed an ordinance trying to ban them in that city. He said he doesn't want the streets of Chicago to be used "as an experiment that will no doubt come with its share of risks, especially for pedestrians." He's probably right; potential pedestrians don't need to add "getting run over" right after "getting shot" on their list of reasons not to walk around Chicago.

But despite your total control freak need to take over for the car when you want to, this actually makes them more dangerous. At first it sounds crazy. After all, couldn't that guy from Florida have saved himself if he had noticed the car was about to make a mistake and grabbed the wheel? Without a wheel, he (and you) would be at the total mercy of the car.

Matt Waxman
Forget 10 and two; correct driving procedure is now hands in your lap, clenched in terror.

In reality, the moment of the switchover is rife with problems, similarly to how the most dangerous part of flying a plane with autopilot is when the actual pilot takes charge. What if a person hasn't been paying perfect attention and doesn't know the exact traffic conditions, or how fast they are going, or that there's a serial killer in the back seat, etc.? And what happens as we spend more and more time letting our cars do all the work and get out of practice? Plus, getting rid of our ability to break or bend the law means we are that much closer to that Utopia. We just need to learn to let go, literally.

One day, all the autonomous cars will be connected to a computer network that lets them know not just where all the roads are, but also where hazards and other cars are. It will update quickly and pretty much always be current. But until we can get the boring cars piloted by slightly more sentient apes off the street, individual driverless cars will rely on lasers, cameras, and GPS to know where they are headed. As anyone who has ever driven into a lake or had a quick trip to the train station turn into a 800-mile journey because they were thoughtlessly following what their GPS told them to do will tell you, this is a BAD idea.

Sophie James/iStock
"No, I do NOT need to stop and ask for directions. The mall will be over the next sand dune. You'll see."

A study by MIT released in August of 2014 found that Google's self-driving cars relied so much on detailed maps that they couldn't get around 99 percent of America safely. Obviously, it's gotten a little bit better over the past two years, but it's slow going. People who live in the middle of nowhere are not going to get safe access to driverless cars at the same time as people in major cities, so if they want to be an early adopter, they are going to have to risk crashing into a cow or two.

nydailynews.com
Of course, that can happen in regular cars, too.

And the lasers and cameras the cars use to make decisions are even worse. As we already saw, they can't tell the difference between the side of a truck and clear sky, to disastrous results. But Google cars can also be blinded by bright sunlight, heavy rain will completely confuse them, and the company hasn't even bothered testing in snow yet. In other words, check the weather before you leave the house, and if the report is "any," you are better off just staying home.

Now imagine that YOU are in that theoretical car. Does that change any of your answers? In a study of 2,000 people, 76 percent said that even if they were in a car with loved ones, the car should do what was necessary to save the most people. However, it's easy to be utilitarian in the hypothetical. When asked if they would actually BUY a car that would save their lives as passengers over those of others, people changed their minds. Given the choice, people would buy the car that saves them, so that's what companies would want to produce. Unless the government got involved and mandated that all driverless cars act in a utilitarian manner, good luck to any pedestrian, bicyclists, or people in other cars.

fortune.com
Make the kid cross first, just in case.

And when an accident does happen, whom do you sue (this is America, so you KNOW someone is paying for this s**t)? Is it the car manufacturer's fault? The owner's? The pedestrian's? Or do we all just storm Google's headquarters, pitchforks in hand, for making us switch in the first place?

So we've done it. We made it to the Self-Driving Utopia. All those ridiculous steering-wheeled cars have been thrown into the Grand Canyon to rust. And finally, the autonomous cars can connect to one big network so everything can run smoothly, finally. Right? RIGHT?

Arindam Banerjee/iStock
Of course not.

It turns out all of the benefits are also equally huge downsides in the hands of bad guys. Reports have warned that terrorists could use this new technology by filling cars with explosives, then having them drive to a destination with no one inside. And the FBI has already studied how criminals could become more dangerous once they have the ability to shoot at police during car chases without having to watch the road.

And any time you make something computerized or put it on a network, you are opening it up to hacking. Think tanks are already worried about what could happen if hackers took over cars while people were inside them. The best-case scenario is that hackers take control safely but demand money to give it back -- what's called "ransomware attacks." More concerning would be taking over cars and using them to kidnap the occupants, or turning them into deadly weapons. Or what if they managed to take over the whole system and brought entire cities, or even countries, to a halt?

Jason Henry, New York Times
God help us, WHAT IF WE HAVE TO WALK SOMEWHERE?

But that would probably take some Swordfish-level hacking abilities, right? And since cars won't run on a network for decades, we're at least all safe from this until then, right? Nope! One security company found that you can "hack" a driverless car's systems using ... a laser pointer.

Maybe walking isn't so bad after all.

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