Encrypted Ammunition?
holy_calamity writes "A patent has been filed for bullets with built-in encryption. Pulling the trigger sends a radio signal to the cartridge in the chamber, but the charge only goes off if the right encryption key is sent. The aim is to improve civilian firearm security." Not sure I'm quite ready to trust the average techno-gadget failure rate on something like this just yet.
The best way to prevent accidental firing of a gun is to outlaw them completely, like here in the UK. Many Americans cite the first ammendment and their right to defend themselves, and sure people should have a right to defend themselves. If it's hard for just anyone to get a gun though, then you're less likely to be defending yourself against a gun. Whatever happened to "putting up your dukes".
I feel safer without a gun, in fact most people around here don't own a gun (Denmark) - and lo and behold, we rarely see deaths from guns.