So my little 4" wide quad needs to be registered? What a joke.<p>I don't see why registration is necessary if they have laws in place around airspace and make the consequences of violating those very clear. Make a few examples and the problem will go away.<p>Registering doesn't solve anything as people will "illegally" build their own if they want to do anything malicious and this won't prevent that. It just adds another nuisance and more tracking.