In the future you aren't going to be able to keep your fingerprints to yourself anyway:
Re:Apple Unveils The iPhone 5S
by AsymetricCom on Tuesday September 10, 2013 @07:11PM
(#6364232)
Installing such machines in public or private property would require all sorts of legislation that doesn't yet exist otherwise the machine would be illegal in both of those environments because of existing legislation.
The saddest part to me is that people are attempting to put an end to this worry by saying "well, Apple said they don't give apps access to it." And no other tech company has ever told us about any of their involvement and cooperation with the NSA in the collection of private user data.
People shouldn't wooed by this new feature and be blinded to its security implications. Start taking this stuff seriously, instead of what these companies are telling you.