Bush administration officials announced today a plan to commit $1 billion to perform DNA testing on convicted felons, including those who claim to be innocent.  Results will be held in a national DNA database. 10 years ago it would have been technologically and fiscally impossible for a program like this to be imagined.

As brain imaging technologies have become more accurate in their spatial and temporal resolution they are already beginning to provide a new window into an individual's cognitive and emotional judgement.  Although hard to believe today, there will come a time when a national Brain Scan database gets announced.  The real question is when, and how this neuroethical issue will impact our cognitive liberty.