text: One of the reasons that these driverless cars are not legalized in all states is as of right now traffic laws are under the assumption that "the only safe car has a human driver in control at all times," as the author states in paragraph nine. Although these cars are not driven by humans one hundred percent of the time, they can still be taken over by humans whenever a situation such as an accident in the middle of the road needs to be navigated around, this is proven in the seventh paragraph. In paragraph seven the author says: "GM has developed driver's seats that vibrate whenever a vehicle is in danger of backing into an object," and "The Google car simply announces when the driver should be prepared to take over," proving that when the driver is in danger, the driver can take over the controls. These innovations heighten the safety of the driver in one of these vehicles.