Here is a fun article from Local6.com - Finger Scanning At Disney Parks Causes Concern.

Supposably it is to ensure that people aren’t passing around passes, they take a scan so that they know that your are the one that bought it. Surely there are better ways though? One Slashdot comment suggests just taking statistics on their usage, as in - “this pass has been used twice in 2 minutes, error!” - or something like that anyway…

The real kicker? Disney officials have stated that they are not taking ‘fingerprints’, per se, but recording ‘finger geometry’. We’ll see…