An example of his: there's an increasing desire among politicians and law enforcement to create huge DNA databases for forensic purposes, to aid in crime fighting and whatever. This will work until criminals start collecting DNA samples and scatter them at a crime scene creating confusion.
Angell didn't mention a counter-measure, and I have one that I'm sure the politicos will want to use: make the possession of DNA a crime. There's the obvious exemption for your own DNA, but this brings new and important expansions of the old standby of "inappropriate contact."
More and more, I am convinced that lack of privacy = lack of security.