Honestly I love lugging my gigantic laptop around, love having the power to do whatever, but that's just me.
Guns have no other purpose than to kill people. You might argue that you need one for hunting, sure, but then you don't need to own anything more than a shotgun with a maximum of 3 shells..
Have you ever even gone hunting? I have and you sir do not understand it.
Relating to cars NOT if you only drive them on your land. I do not need to license my car OR have a drivers license to drive them on my own land (think farmer) as for registration thats mainly to account for stolen vehicles etc. As for guns you ALSO have to fill out registration etc when buying certain guns. My
I actually enjoy guns for other purposes then killing people, or killing anything for that matter. They are fun to practice marksmanship or shot targets with.
My point is you cant legislate away stupid or homicidal. Most laws only really affect those that follow them.
IED's may be illegal but that doesn't mean you can't make one or that people wont. All it does ensure is that if they make one and use it (and don't kill themselves) then they could have another charge added to their long list of laws broken.
Question for you: Do you think that guns have no legislation at all? That I can just go buy any gun that I want? Its like most of the weapons you listed, I have to have the permits etc etc to even think about owning any of those items the same applies to certain guns. Some guns are near impossible to own legally and thats for a good reason. The guns that are legal now I see no problem for law abiding citizens to own.
In the end its still people that cause the problems why not try and address what caused the wound instead of trying to lessen the blow the next time?
On a more personal opinion, if they're doing doctorate like research I would be inclined to believe that they would be smart enough to find guns no matter how hard you push papper (make laws) at them. I mean their planning on killing people which is way worse then owning an illegal gun so why should they care if they break 2 or 3 laws more.