And there is only one system that will do the job: a national identity card that registers the bearer's name and biometric data, like fingerprints or retinal scans or DNA, and that indicates whether the bearer is a citizen, a permanent resident, or a temporary resident... (pg 70)
I can only figure that Dean is going for the vulnerable neoconservative vote and the soccermom vote that just loves trading liberties for the promise of security.