The problem I have with this isn't so much the registration (although I think there is a fine line there and a few bad apples have ruined this for the rest of u

The problem I have with this isn't so much the registration (although I think there is a fine line there and a few bad apples have ruined this for the rest of us by doing dumb things with their drones). It is this fine bit of information nestled in the article: "Technically, only U.S. citizens are required to register, but the FAA is encouraging foreign nationals to register as well." I am not familiar with FAA regulations concerning aircraft registration, but my question then becomes don't foreign airlines have to register to fly in US airspace? I get there is a difference between a drone and a 747, but isn't the purpose of this rule to regulate the airspace in a sense? In the end the rule needs to apply to all or none. If I am foreign national in the US I still technically need to be licensed to drive a car.