[E. Pluribus Unum]

Every time a weapon fitted with the device is fired, it stamps an indelible imprint of the firearm's serial number onto the bullet's shell casing.

This will never do. Each and every firearm should be equipped with a GPS/cell phone/modem that sends an email to the FBI telling them your identity and your exact location every time you squeeze the trigger.

[litehaus]

NOW you're talkin!!!!!!!!!!!!Gun Grabbers Of America-Heed this man!;^)

[Procyon]

No, a lancet on the trigger extracts a DNA sample by pricking the trigger finger; a tiny lab built into the grip or stock does an instant analysis. Also a LCD camera at the end of the barrel points back to the shooter's face. All this is combined with the GPS data and flashed to an overhead satellite.