A Korean visitor to the United States has their fingerprints scanned by the Cross Match Technologies L SCAN GUARDIAN scanner that obtains all 10 fingerprints of international visitors entering the U.S. through customs at Dulles International Airport in Dulles, Virginia, on December 10, 2007. The DHS plans to deploy the ten-fingerprint scanners, up from current two-print scanners, at all U.S. points of entry over the next year. (UPI Photo/Roger L. Wollenberg)