and many of you seem to be utterly wrong when you have the lack of experience in understanding security even to basics. fingerprints and facial recognizion and Bluetooth currently are not only not supported as any standard in any class by any group but they have not been accepted because of its insecurity. Please reference W3C for an idea of why I can say this and be able to write a paper but its all footnotes with a consortium of the heads from industry working to make a standard so you once again don't get hacked because you keep it coming for a reason.