Slashdot has a story about a new project for information extraction for homeland security:
http://it.slashdot.org/article.pl?sid=06/09/25/0111231&from=rss
It further links to these two sites:
http://www.eurekalert.org/pub_releases/2006-09/cuns-sfa092206.php
http://blogs.zdnet.com/emergingtech/?p=364