DHS press releases, February 1, 2008: “The U.S. Department of Homeland Security (DHS) announced today that it has begun collecting additional fingerprints from international visitors arriving at Chicago O’Hare International Airport (O’Hare), Hartsfield-Jackson Atlanta International Airport (Hartsfield), and George Bush Houston Intercontinental Airport (Bush Intercontinental). The change is part of the department’s upgrade from two- to 10-fingerprint collection to enhance security and facilitate legitimate travel by more accurately and efficiently establishing and verifying visitors’ identities.”