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If I could have a gun that only I could fire, and which I could fire with 100% reliability, that would be something I'd want.

But I've never seen a particularly fast or reliable fingerprint scanner, my hands might be dirty or greasy, and presumably the gun can run out of battery.

I don't have a gun, but if I did, I wouldn't get one of these.

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Design considerations for handguns include:

* Firing with the opposite hand

* Firing with hands slick with fluid (blood, sweat, mud, whatever).

* Reloading and firing with a single hand available.

* Firing with broken or missing digits.

The world of gunfighting is a great deal messier than fingerprint scanners can handle.

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