Up to 250,000 Gulf War veterans have 'unexplained medical symptoms'
http://www.washingtonpost.com/wp-dyn/content/article/2010/04/09/AR2010040904712.html
http://www.washingtonpost.com/wp-dyn/content/article/2010/04/09/AR2010040904712.html
"As many as 250,000 veterans of the first Gulf War "have persistent unexplained medical symptoms" whose cause may never be found, although genetic testing and functional brain imaging may eventually shed some light on the problem."