oni writes "Here's a story on wired about a Pentagon project called LifeLog. It seeks to record every bit of information that can be had, index it by name, or SSN, or even location, and make the database searchable. Furthermore, '[LifeLog adds] physical information (like how we feel) and media data (like what we read) to this transactional data.'"
If you think you can build such a system, apply for a grant
. There's also a current AP story about Total Information Awareness