[BitWielder1]

If someone *wants* to pay extra money for a battery powered feature that may malfunction in a critical moment, then good for them.
Any assailant I can possibly expect won't have it on his gun so why should I?

[thorvaldr]

If it’s a good idea make the feds and every police department inn the country use it first. Otherwise its the most egregious Orwellian tyranny yet.

[longtermmemmory]

or an easily jammed signal that reders the user unarmed.

[H8Libs]

I’m not sure how effective using biometrics to fire a weapon would be, but I’m not entirely against such measures for gun storage. I’m thinking, if you have a household with children and their friends in it, it might be advantageous to have a safe that only mommy or daddy’s thumb/eye could open.