by AP Photo/Kevin Wolf
http://story.news.yahoo.com/news?tmpl=story&u=/040903/480/wx10309031705
Homeland Security Secretary Tom Ridge looks into an iris camera as he becomes a ‘registered traveler’ at Reagan National Airport in Washington, D.C., Friday, Sept. 3, 2004. The airport joined four others in a test program that allows air passengers to submit to background checks in exchange for avoiding extra security inspections. (AP Photo/Kevin Wolf)