Enhanced Drivers Licenses for Data Mining

Next week California legislators are voting on an enhanced drivers license or EDL.  More here. Such a license contains a RFID tag that points to a personal identification number.   These can easily be read, but apparently only at a short distance.   It could make traffic and customs stops more efficient.  It could also lead to more general tracking of people and loss of position privacy.  I am less concerned than the article is.  There are many ways to gather this data already.  We can grow to expect this.  Mostly we need to understand how government is using and importantly, sharing the data.  Remembering also that data mining will make this kind of data more revealing.