Trucks Tethered by Computer Control

In Technology Review:   Would have fit right into some of our fleet simulation work.   This has the potential for saving fuel.   But also appearing frightening on the highway.   Regulation exists by US state and probably has not been altered for this yet.  " ... 10-4, Good Computer: Automated System Lets Trucks Convoy as One .... A recent demonstration involving two trucks tethered by computer control shows how automation and vehicle-to-vehicle communication are creeping onto the roads. ... "