No.
Very simple.
No.
Maybe I want to walk a few blocks deeper into my neighborhood and feel a bit safer.
Because a couple of guys used it as part of a robbery (yeah, hell of a PBS show on it), you are saying it should be some type of tracked or forbidden item?
What about regular fabric plus steel plates? What about cotton to make the fabric and iron ore to make the plates? Now THIS is a slippery slope!
What next, kitchen knives?
No.