Eric Limer:

There are plenty of problems to solve before any of this would be possible though, including self-driving car laws in half a dozen US states, some way of having driver-less robo-rigs cross borders into and out of the United States, and security in place to make sure no one tries to exploit that system. But robot roads like this one—if it happens—could pave the way to wider acceptance of self-driving vehicles that really do take care of it all themselves. Even if we’re not ready to have them on the road with us just yet.