http://www.physorg.com/news11171.html
How secure are your fingerprints?Can they be copied on a copier and used to fake out a scanner?If someone wanted your prints bad enough, your finger could be amputated.
People have had hands amputated by thieves to steal a Rolex with a combination-locked band.
If you are talking about very high security situations,then whatever technology is used should verify that the print is indeed attached to a living, breathing human being before authentication.This means more sensors have to be incorporated into the fingerprint scanner, such as pulse, body temp, skin conductivity,coupled with facial recognition, retinal scan, etc.