So if there are id codes on bullets and/or guns and I steal someone's guns and go on a 5 state killing spree, they'll come and get that person and I'm off scot-free?
Cool
And if I have a gun thats locked and hidden away and someone breaks into my house are they going to patiently wait while I fiddle with the numerous locking mechanisms that have my gun in their grasp?
I'm more worried about my kids getting killed by strangers, cars and dogs than I am about guns.