How about RFID chips (or something like that) in all firearms? And long range scanners that can detect said RFID-like chips. Make it embedded in a crucial part

How about RFID chips (or something like that) in all firearms? And long range scanners that can detect said RFID-like chips. Make it embedded in a crucial part of the firing system (firing pin or something) so that if that part is removed then the gun becomes a doorstop. As you can tell, I don't know if this is technically feasible but hey its an idea. Have long range scanners put into public areas susceptible to these types of attacks - schools, malls, movie theaters, etc. Automatic notification to police when a scanner picks it up - noting the distance from the scan location, make/model of weapon and direction weapon is travelling in. Maybe scale the notifications - dispatch only for 1 weapon, if 2 or more are detected in same vicinity then direct notification to all patrol and to dispatch? For example if it is a college campus, it could detect the firearm(s) a few minutes before a malicious minded person gets to where they are going to start something. If that few minutes allows responders to get there in time, then it could be prevented.